1. Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India
2. Indo-British Advanced Pain Clinic, Hyderabad, Telangana, India
3. Kolkata Pain Clinic, Kolkata, West Bengal, India
4. Medanta the Medicity Hospital, Gurgaon, Haryana, India
5. Meru Spine and Pain Centre, Indore, Madhya Pradesh, India
6. Department of Anesthesiology, AIIMS, Vijayawada, Andhra Pradesh, India