1. Dow University of Health Sciences, Mission Road, Karachi, Pakistan
2. Department of Internal Medicine, Dow University of Health Sciences, Karachi 74200, Pakistan
3. Department of Public Health, Atish Dipankar University of Science and Technology, Dhaka, Bangladesh
4. Voice of Doctors Research School, Dhaka, Bangladesh
5. Department of Orthopaedic Surgery, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China