Shiraz HIV/AIDS Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran (Drs Keshani, Foroozanfar, and Davarpanah); School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran (Drs Hassani, Parvizi, and Khadem); Department of Nutrition, Faculty of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran (Dr Arab-Moorchegani); Clinical Education Research Center, and Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran (Dr Omidifar); and Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran (Dr Joulaei).

Correspondence: Hassan Joulaei, PhD, PharmD, MPH, Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran ([email protected]).

The authors are grateful for the support of participants in this study and administrative support of hospitals' managers, supervisors, and nurses.

This study was funded by the Vice Chancellor of Research, Shiraz University of Medical Sciences, Shiraz, Iran.

H.J. was responsible for the study concept and design, critical revision of the manuscript for intellectual content, and administrative support. P.K. was responsible for the study concept and design, administrative, technical support, and study supervision, drafting the manuscript, and critical revision of the manuscript. Z.F. was responsible for analysis and interpretation of the data, drafting the manuscript, and critical revision of the manuscript. A.H., F.P., Y.K., and M.A.M. were responsible for data gathering, preparing blood samples for laboratory testing, and critical revision of the manuscript. N.O. and M.A.D. were responsible for administrative, technical support and supervision, interpretation of the data, and critical revision of the manuscript.

The authors have disclosed that they have no significant relationships with, or financial interest in, any commercial companies pertaining to this article.