Научная статья на тему 'It’s not just a “female issue”: eating attitudes and behaviors of Pakistani male and female Pharmacy students'

It’s not just a “female issue”: eating attitudes and behaviors of Pakistani male and female Pharmacy students Текст научной статьи по специальности «Фундаментальная медицина»

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Russian Open Medical Journal
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EATING DISORDERS / EAT-26 / NUTRITION / GENDER DIFFERENCES

Аннотация научной статьи по фундаментальной медицине, автор научной работы — Khalid Sahir, Razia Eisha Tur, Raza Husnnain, Sheikh Hafsa, Salman Muhamad

Aim Early identification of people with eating disorders can result in better treatment and complete recovery. Therefore, we aimed to assess the prevalence of pharmacy students at high-risk of eating disorders. Material and Methods A cross-sectional study was undertaken in pharmacy departments of two renowned academic institutes of Lahore, Pakistan. Eating attitudes and behaviors of the students were assessed by eating attitudes test (EAT-26). Results A total of 600 questionnaires were distributed and 566 were received, with the response rate of 93.3%. The mean age of the study cohort was 21.78±2.44 years, with a predominance of women (69.6%). The mean EAT-26 score was found out to be 16.99±11.18. The prevalence of university students at high risk of eating disorders was found out to be 36.7%, with no significant difference between gender, age and body mass index. Conclusion The findings of the present study suggest that a high proportion of Pakistani pharmacy students are at risk of eating disorders; with no significant difference between men and women. Our study highlights the need of awareness programs to promote healthy eating attitudes among students.

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Текст научной работы на тему «It’s not just a “female issue”: eating attitudes and behaviors of Pakistani male and female Pharmacy students»

ISSN 2304-3415, Russian Open Medical Journal

2017. Volume 6. Issue 4. Article CID e0406 DOI: 10.15275/rusomj.2017.0406_

Research letter

It's not just a "female issue": eating attitudes and behaviors of Pakistani male and female pharmacy

students

11 2 1 13

Sahir Khalid Eisha Tu r Razia , Muhammad Husnnain Raza , Hafsa Sheikh , Muhammad Salman ' ,

4 111 4

Naureen Shehzadi , Zia Ul Mustafa , Noman Asif , Khalid Hussain , Muhammad Tanveer Khan ,

Amer Hayat Khan 3, Fahad Saleem 5

1 University of Punjab, Lahore, Pakistan 2 Faisalabad Institute of Cardiology, Faisalabad, Pakistan 3 University Sains Malaysia, Penang, Malaysia

4 University of Lahore, Lahore, Pakistan 5 University of Baluchistan, Quetta, Pakistan

Received 22 September 2017, Accepted 25 October 2017

© 2017, Khalid S., Razia E.T., Raza M.H., Sheikh H., Salman M., Shehzadi N., Mustafa Z.U., Asif N., Hussain K., Khan M.T., Khan A.H., Saleem F. © 2017, Russian Open Medical Journal

Abstract: Aim — Early identification of people with eating disorders can result in better treatment and complete recovery. Therefore, we aimed to assess the prevalence of pharmacy students at high-risk of eating disorders.

Material and Methods — A cross-sectional study was undertaken in pharmacy departments of two renowned academic institutes of Lahore, Pakistan. Eating attitudes and behaviors of the students were assessed by eating attitudes test (EAT-26).

Results — A total of 600 questionnaires were distributed and 566 were received, with the response rate of 93.3%. The mean age of the study cohort was 21.78±2.44 years, with a predominance of women (69.6%). The mean EAT-26 score was found out to be 16.99±11.18. The prevalence of university students at high risk of eating disorders was found out to be 36.7%, with no significant difference between gender, age and body mass index.

Conclusion — The findings of the present study suggest that a high proportion of Pakistani pharmacy students are at risk of eating disorders; with no significant difference between men and women. Our study highlights the need of awareness programs to promote healthy eating attitudes among students.

Keywords: eating disorders, EAT-26, nutrition, gender differences.

Cite as Khalid S, Razia ET, Raza MH, Sheikh H, Salman M, Shehzadi N, Mustafa ZU, Asif N, Hussain K, Khan MT, Khan AH, Saleem F. It's not just a "female issue": eating attitudes and behaviors of Pakistani male and female pharmacy students. Russian Open Medical Journal 2017; 6: e0406.

Correspondence to Muhammad Salman. E-mail: msk5012@gmail.com

Introduction

Excessive or inadequate intake of food is harmful to physical and emotional health of an individual. The most common diseases that originate due to abnormal eating habits are binge eating disorder (frequently eat unusually large amounts of food and feel unable to stop eating), anorexia nervosa (low weight, fear of gaining weight, a strong desire to be thin, and food restriction) and bulimia nervosa (binge eating followed by purging) [1].

Estimated lifetime prevalence of Diagnostic and Statistical Manual of Mental Disorders-IV anorexia nervosa, bulimia nervosa, and binge eating disorder are 0.9%, 1.5%, and 3.5% among females, and 0.3% 0.5%, and 2.0% among males [1]. StriegelMoore et al. [2] reported that the prevalence of bulimia in male and female college students was 3.8% and 0.2%, respectively. Another study conducted on freshmen college students revealed that 4.7% students had eating disorders [3]. The prevalence of Pakistani medical and nursing students at high risk of eating

disorders was reported to be 21.7% [4] and 22.6%, respectively [5]. The exact etiology of eating disorders is uncertain. However, several factors such as stress [6-8], culture [9], mood [10], parental modelling [11], media [12, 13] and health concerns [15] are known to be associated with eating disorders.

The transition from adolescence to adulthood is a period where people are more prone to develop unhealthy eating habits, substance abuse, and sedentary lifestyle [15]. University students are potentially important targets for the promotion of healthy lifestyles as this may decrease the risks of lifestyle-related disorders later in their life [16]. University students experience stresses in their university life that may negatively affect their diet [17]. Early Identification of individuals with eating disorders can result in better treatment and complete recovery.

Therefore, we aimed to assess the prevalence of male and female Pakistani Pharm-D students at high-risk of eating disorders.

ISSN 2304-3415, Russian Open Medical Journal

2017. Volume 6. Issue 4. Article CID e0406 DOI: 10.15275/rusomj.2017.0406_

Table 1. Demographics of the study population

Characteristics Overall (n=566) EAT-26 result p-value

Positive (n=208) Negative (n=358)

Age, years, M±SD 21.8±2.4 21.6±2.3 21.9±2.5 0.131*

18-21 years, no. (%) 277 (48.9) 111 (40.1) 166 (46.4) 0.064**

>22 years, no. (%) 289 (51.1) 97 (59.9) 192 (66.4)

Gender

- Male, no. (%) 172 (30.4) 64 (37.2) 108 (33.6) 0.477**

- Female, no. (%) 394 (69.6) 144 (62.8) 250 (63.5)

BMI, kg/m2, M±SD 21.31±4.69 21.64±4.39 21.13±4.85 0.209*

EAT Score, c.u., M±SD 16.99±11.18 28.75±8.49 10.16±5.32 <0.001**

M±SD, mean with standard deviation; no. (%), numbers and percentages; BMI, body mass index; EAT, eating attitude test; c.u., conventional units. * - Chi-square test; ** - t-test.

Table 2. Comparison of the responses of dieting, bulimia and food preoccupation, and oral control subscales of EAT-26

Questions of EAT-26 Responses, no. (%) p-value*

High-risk individuals Normal individuals

Dieting scale items

Am terrified about being overweight 155 (74.5) 125 (34.9) <0.001

Aware of the calorie content of foods that I eat 111 (53.4) 92 (25.7) <0.001

Particularly avoid food with a high carbohydrate content 106 (51.0) 34 (9.5) <0.001

Feel extremely guilty after eating 66 (31.7) 21 (5.9) <0.001

Am preoccupied with a desire to be thinner 123 (59.1) 84 (23.5) <0.001

Think about burning up calories when I exercise 133 (63.9) 136 (38.0) <0.001

Am preoccupied with the thought of having fat on my body 141 (67.8) 96 (26.8) <0.001

Avoid foods with sugar in them 110 (52.9) 62 (17.3) <0.001

Eat diet foods 110 (52.9) 41 (11.5) <0.001

Feel uncomfortable after eating sweets 121 (58.2) 55 (15.4) <0.001

Engage in dieting behavior 110 (52.9) 7 (10.3) <0.001

Like my stomach to be empty 103 (49.5) 52 (14.5) <0.001

Enjoy trying new rich foods 58 (27.6) 116(32.4) 0.152

Bulimia and food preoccupation scale

Find myself preoccupied with food 98 (47.1) 70 (19.6) <0.001

Have gone on eating binges where I feel that I may not be able to stop 101 (48.6) 75 (20.9) <0.001

Vomit after I have eaten 50 (24.0) 14 (3.9) <0.001

Feel that food controls my life 131 (63.0) 129 (36.0) <0.001

Give too much time and thought to food 105 (50.5) 67(18.7) <0.001

Oral control scale

Avoid eating when I am hungry 81 (38.9) 36 (10.1) <0.001

Cut my food into small pieces 147 (70.7) 146 (40.8) <0.001

Feel that others would prefer if I ate more 111 (53.4) 66 (18.4) <0.001

Other people think that I am too thin 108 (51.9) 126 (35.2) <0.001

Take longer than others to eat my meal 125 (60.1) 114 (31.8) <0.001

Display self-control around food 129 (62.0) 117 (32.7) <0.001

Feel that others pressure me to eat 109 (52.4) 85 (23.7) <0.001

EAT, eating attitude test; * - Chi-square test.

Material and Methods

Study participants and setting

A cross-sectional study design was used to undertake the present study at pharmacy departments of two renowned universities in the capital of Punjab (University of the Punjab and University of Lahore) during a period of 3 months (February-April, 2016). A convenient sampling method was used and 600 pharmacy students were approached directly by the research assistants within the university office hours.

Ethical approval

The permission to conduct this study was obtained from the Research Ethics Committee of the above-mentioned study settings and research was conducted in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments. A written informed consent was obtained from every student prior to enrollment in the study.

Measures

The eating attitudes of the students were assessed by the Eating Attitude Test (EAT-26) which was a validated self-administered questionnaire to screen people at high risk of eating disorders [18]. This questionnaire contained three sections; Section-A (6 questions related to demographics), Section-B (26 questions to evaluate eating attitudes) and Section-C (5 questions to assess the eating behaviors of respondents over the past six months). English version of EAT-26 was used in the current study. Body mass index (BMI) was computed and categorized as per criterion of the World Health Organization (WHO) [19].

Statistical analysis

Continuous and categorical variables were presented as mean with standard deviation (M±SD) and numbers or percentages, respectively. Comparisons between continuous variables were made by the Independent t-test whereas Chi-square test was used to compare categorical variables. A p-value of less than 0.05 was

ISSN 2304-3415, Russian Open Medical Journal

2017. Volume 6. Issue 4. Article CID e0406 DOI: 10.15275/rusomj.2017.0406_

considered statistically significant. All statistical analysis were performed using SPSS version 21.0 (SPSS Inc., Chicago, IL) for Windows.

Results

A total of 600 questionnaires were distributed and 566 questionnaires were received, with the response rate of 93.3%. The characteristics of the study sample are given in Table 1. The mean age was 21.8±2.4 years (range 18-35 years), with a predominance of women (69.6%). Majority of the respondents had normal weight whereas 7.2% were severely underweight and 6.2% were obese. The mean EAT-26 score was 16.99±11.18, with no significant difference of mean EAT-26 score among males and females (16.89±11.56 vs 17.05±11.02, p=0.854). The prevalence of students at high risk of eating disorders (EAT-26 score >20) was 36.7%, with no significant difference between gender (p=0.477), age (p=0.064), BMI (p=0.290) and study location (37.4% public university students' vs 33.3% private university students, p=0.482).

Analysis of the responses of the EAT-26 questions regarding dieting, bulimia and food preoccupation, and oral control among positive and negative respondents are shown in Table 2. Of 208 students at high risk of eating disorders, 74.5% were terrified about being overweight whereas almost 68% of the students were preoccupied with the thought of having fat on their bodies. Around fifty nine percent were always preoccupied with desire to be thinner and approximately 53% were engaged in dieting. On the other hand, nearly half of the high risk students self-confessed of gone on eating binges where they felt that they may not be able to stop and 27.9% had the impulse to vomit after eating. Sixty two percent of high risk individuals were reported of displaying self-control around food.

Discussion

This study sought to assess the prevalence of pharmacy students at high risk of eating disorders. Findings of the study revealed that the unhealthy eating attitudes were present in a significant number of pharmacy students of universities at Lahore, Pakistan with no significant difference regardless of the gender, age, BMI categories and study location.

In the current study, frequency of disordered eating and abnormal eating attitude and behavior were found in 36.7% of the students which was significantly higher than that reported in medical and nursing students [4, 5]. This indicates that there is a pressing need of educating the students regarding the importance of adequate food intake as eating disorders particularly anorexia nervosa has been reported to disturb several systems resulting in complications such as purpura, hepatic dysfunction, osteoporosis, diabetic complications and acrocyanosis [20]. More importantly, anorexic patients prematurely die due to one of the aforementioned complications.

We observed that unhealthy eating attitudes were not just a girls' problem as there was no significant difference in the prevalence of disturbed eating attitudes among both male and female. This finding is comparable to the findings of an earlier study conducted on Israeli-Arab adolescent boys and girls [21]. Tantleff-Dunn et al. [22] demonstrated that eating disorders and body image dissatisfaction are becoming normative and universal, not only in females but also in males. And this transition is mainly due to the desired "slenderness culture"; that is considered as the

idealized images of beauty and attractiveness that infiltrate modern society and effect the eating attitudes and behaviors of both male and female [22]. Contrary to our findings, earlier studies from Pakistani population showed that the prevalence of eating orders were significantly high in females as compared to male [4, 5]. Similarly, Pope at al. [23] and Katzman et al. [24] also demonstrated predominance of female population suffering from eating disorders. Similar to our findings, earlier studies also reported that there was no association of EAT-26 scores with age [5, 21] and BMI [25].

Though, we achieved desirable objectives of our study but there were some limitations. Firstly, this study was conducted on pharmacy students at two universities of only one city therefore these findings may not generalized to the overall university students' population. Secondly, this is a self-reported questionnaire based survey so the information must be carefully evaluated otherwise it my harm the reliability of the survey. Thirdly, we did not use a probability sampling method so we had disadvantages such as selection bias and non-generalizability. Lastly, we did not perform the clinical assessment for the diagnosis of eating disorders as per criterion of Diagnostic and Statistical Manual of Mental Disorders, fifth edition. It was not possible to carry out interviews with all the respondents scored above the cutoff value of EAT-26. Therefore, our findings only demonstrate the students at high risk of eating disorders. Further investigation of the factors influencing the eating attitudes and behaviors of students is necessary and it may help to reduce the risk of eating disorders later in their life. Moreover, awareness programs need to be conducted to make society aware of these hidden enemies.

Conclusion

The data suggest a high proportion Pharmacy students are at risk of eating disorders and emphasis that males are at risk as much as females. This study highlights the need of educational/awareness programs to increase the knowledge of not only students but also the general public regarding eating disorders.

Acknowledgments

Authors are grateful to Ms. Hiba Malik, Ms. Zohreh Ashjazadeh and Mr. Asim Amin for assisting us throughout this study. Moreover, we are also thankful to our study participants for their cooperation.

Conflict of interest

No conflict of interest associated with this work.

References

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1. Hudson JI, Hiripi E, Pope HG, Kessler RC. The prevalence and correlates of eating disorders in the National Comorbidity Survey Replication. Biol Psychiatry 2007; 61(3): 348-58. http://dx.doi.org/10.1016/j.biopsych.2006.03.040.

2. Striegel-Moore RH, Silberstein LR, Frensch P, Rodin J. A prospective study of disordered eating among college students. Int J Eat Disord 1989; 8(5): 499-509. http://dx.doi.org/10.1002/1098-108X(198909)8:5<499::AID-EAT2260080502>3.0.C0;2-A.

3. Pyle RL, Neuman PA, Halvorson PA, Mitchell JE. An ongoing cross-sectional study of the prevalence of eating disorders in freshman college students. Int J Eat Disord 1991; 10(6): 667-77. http://dx.doi.org/10.1002/1098-108X(199111)10:6<667::AID-EAT2260100605>3.0.C0;2-K.

ISSN 2304-3415, Russian Open Medical Journal

2017. Volume 6. Issue 4. Article CID e0406 DOI: 10.15275/rusomj.2017.0406_

4. Babar N, Alam M, Ali SS, Ansari A, Atiq M, Awais A, et al. Anorexic behaviour and attitudes among female medical and nursing students at a private university hospital. J Pak Med Assoc 2002; 52(6): 272-276. https://www.ncbi.nlm.nih.gov/pubmed/12481642.

5. Memon AA, Adil SE-e-R, Siddiqui EU, Naeem SS, Ali SA, Mehmood K. Eating disorders in medical students of Karachi, Pakistan-a cross-sectional study. BMC Res Notes 2012; 5: 84. http://dx. doi.org/10.1186/1756-0500-5-84.

6. Davis R, Freeman RJ, Garner DM. A naturalistic investigation of eating behavior in bulimia nervosa. J Consult Clin Psychol 1988; 56 (2): 27379. https://dx.doi.org/10.1037/0022-006X.56.2.273.

7. Willenbring ML, Levine AS, Morley JE. Stress induced eating and food preference in humans: a pilot study. Int J Eat Disord 1986; 5(5): 855864. https://dx.doi.org/10.1002/1098-108X(198607)5:5<855::AID-EAT2260050507>3.0.C0;2-0.

8. Oliver G, Wardle J. Perceived effects of stress on food choice. Physiol Behav 1999; 66(3): 511-515. https://doi.org/10.1016/S0031-9384(98)00322-9.

9. Rozin P, Cines BM. Ethnic differences in coffee use and attitudes to coffee. Ecol Food Nutr 1982; 12(2): 79-88. http://dx. doi.org/10.1080/03670244.1982.9990699.

10. Garg N, Wansink B, Inman JJ. The influence of incidental affect on consumers' food intake. J Marketing 2007; 71(1): 194-206. https://doi.org/10.1509/imkg.71.L194.

11. Brown R, Ogden J. Children's eating attitudes and behaviour: a study of the modelling and control theories of parental influence. Health Educ Res 2004; 19 (3): 261-271. https ://dx.doi.org/10.1093/her/cyg040.

12. Kotler JA, Schiffman JM, Hanson KG. The influence of media characters on children's food choices. J Health Commun 2012; 17(8): 886-898. https://dx.doi.org/10.1080/10810730.2011.650822.

13. Stice E, Shaw HE. Adverse effects of the media portrayed thin-ideal on women and linkages to bulimic symptomatology. J Soc Clin Psychol 1994; 13(3): 288-308. https://dx.doi.org/10.1521/iscp.1994.13.3.288.

14. Sun Y-HC. Health concern, food choice motives, and attitudes toward healthy eating: The mediating role of food choice motives. Appetite 2008; 51(1): 42-49. https://dx.doi.org/10.1016/i.appet.2007.11.004.

15. Nelson MC, Story M, Larson NI, Neumark-Sztainer D, Lytle LA. Emerging adulthood and college-aged youth: an overlooked age for weight-related behavior change. Obesity 2008; 16(10): 2205-2211. https://dx.doi.org/10.1038/oby.2008.365.

16. Von Bothmer MI, Fridlund B. Gender differences in health habits and in motivation for a healthy lifestyle among Swedish university students. Nurs Health Sci 2005; 7(2): 107-18. https://dx.doi.org/10.1111/i.1442-2018.2005.00227.x.

17. Mikolaiczyk RT, El Ansari W, Maxwell AE. Food consumption frequency and perceived stress and depressive symptoms among students in three European countries. Nutr J 2009; 8: 31. https://dx.doi.org/10.1186/1475-2891-8-31.

18. Garner DM, Olmsted MP, Bohr Y, Garfinkel PE. The eating attitudes test: psychometric features and clinical correlates. Psychol Med 1982; 12(4): 871-878. https://www.ncbi.nlm.nih.gov/pubmed/6961471.

19. World Health Orgaization. Global database on body mass index. Available at: http://apps.who.int/bmi/index.isp?introPage=intro 3.html.

20. Mitchell JE, Crow S. Medical complications of anorexia nervosa and bulimia nervosa. Curr Opin Psych 2006; 19(4): 438-43. https://dx.doi.org/10.1097/01.yco.0000228768.79097.3e.

21. Latzer Y, Azaiza F, Tzischinsky O. Not iust a western girls' problem: eating attitudes among Israeli-Arab adolescent boys and girls. Int J Adolesc Youth 2014; 19(3): 382-394. http://dx.doi.org/10.1080/02673843.2012.747973.

22. Tantleff-Dunn S, Barnes RD, Larose JG. It's not just a "woman thing:" The current state of normative discontent. Eat Disor 2011; 19(5): 392402. https://dx.doi.org/10.1080/10640266.2011.609088.

23. Pope HG, Hudson JI, Yurgelun-Todd D, Hudson MS. Prevalence of anorexia nervosa and bulimia in three student populations. Int J Eat Disord 1984; 3(3): 45-51. https://dx.doi.org/10.1002/1098-108X(198421)3:3<45::AID-EAT2260030304>3.0.C0;2-G.

24. Sample C, Katzman MA, Wolchik SA, Braver SL. The prevalence of frequent binge eating and bulimia in a nonclinical college sample. Int J Eat Disord 1984; 3(3): 53-62. https://dx.doi.org/10.1002/1098-108X(198421)3:3<53::AID-EAT2260030305>3.0.C0;2-C.

25. Caradas A, Lambert E, Charlton KE. An ethnic comparison of eating attitudes and associated body image concerns in adolescent South African schoolgirls. J Hum Nutr Diet 2001; 14(2): 111-120. https://dx.doi.org/10.1046/i.1365-277X.2001.00280.x.

Authors:

Sahir Khalid - PharmD, Student, Department of Pharmacy Practice, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan. Eisha Tur Razia - PharmD, Student, Department of Pharmacy Practice, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan.

Muhammad Husnnain Raza - MBBS, Cardiology Trainee, Faisalabad Institute of Cardiology, Faisalabad, Pakistan.

Hafsa Sheikh - PharmD, Student, Department of Pharmacy Practice, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan. http://orcid.org/0000-0001-5630-0721.

Muhamad Salman - PharmD, MSc, Lecturer, Department of Pharmacy Practice, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan; Doctoral Student, Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, University Sains Malaysia, Penang, Malaysia. http://orcid.org/0000-0002-4366-1461.

Naureen Shehzadi - PharmD, Mphil, Senior Lecturer, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lahore, Lahore, Pakistan. http://orcid.org/0000-0001-6688-3289. Zia Ul Mustafa - PharmD, Mphil Scholar, Department of Pharmacology, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan. http://orcid.org/0000-0002-8109-4859.

Noman Asif - PharmD, Mphil, Research Scholar, Department of Pharmaceutics, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan. http://orcid.org/0000-0001-5193-4143. Khalid Hussain - BSc, Bpharm, Mphil, PhD, Full Professor, Department of Pharmaceutical Chemistry, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan. http://orcid.org/0000-0001-9627-8346.

Muhammad Tanveer Khan - PharmD, Mphil, Assistant Professor, Department of Pharmacognosy, Faculty of Pharmacy, University of Lahore, Lahore, Pakistan.

Amer Hayat Khan - Bpharm, Mphil, PhD, Senior Lecturer, Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, University Sains Malaysia, Penang, Malaysia.

Fahad Saleem - Bpharm, Mphil, PhD, Associate Professor, Department of Pharmacy Practice, Faculty of Pharmacy and Health Sciences, University of Baluchistan, Quetta, Pakistan. http://orcid.org/0000-0001-8100-8992.

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