1. Dr. Pradeep Sharma’s Pain Management Clinic, New Delhi 110070, India
2. Department of Rehabilitation Sciences, Jamia Hamdard, New Delhi 110062, India
3. Pandit Deendayal Upadhyaya National Institute for Persons with Physical Disabilities, New Delhi 110002, India
4. Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia