1. Department of Physiotherapy and Rehabilitation, Uttara Adhunik Medical College, Dhaka 1230, Bangladesh; Hasna Hena Pain and Physiotherapy Research Center (HPRC), Dhaka 1230, Bangladesh
2. Department of Epidemiology, University of Florida, Gainesville, FL 32610, USA
3. Uttara Homeopathic Medical College and Hospital, Dhaka 1230, Bangladesh