1. Department of Medical Research Circle, Bukavu, Democratic Republic of Congo
2. Department of Allied Health Sciences, Iqra National University, Peshawar, Pakistan
3. School of Public Health, Yale University, New Haven, Connecticut, USA
4. College of Health Sciences, Usman Danfodiyo University, Sokoto State, Kaduna State, Nigeria
5. Faculty of Medicine, Alexandria University, Alexandria, Egypt
6. Department of Public Health and Community Medicine, Shaikh Khalifa Bin Zayed Al Nahyan Medical and Dental College, Lahore, Pakistan