Ayubi Erfan, Safiri Saeid
Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Epidemiology & Biostatistics, School of Public Health, Tehran University of Medical Sciences, Iran.
Managerial Epidemiology Research Center, Department of Public Health, School of Nursing and Midwifery, Maragheh University of Medical Sciences, Iran.
Am J Med. 2018 Feb;131(2):e75. doi: 10.1016/j.amjmed.2017.08.023.