1. Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Deoghar, Jharkhand, India
2. Critical Care Medicine, Omni Hospital, Hyderabad, India
3. Department of ENT & HNS, All India Institute of Medical Sciences (AIIMS), Deoghar, Jharkhand, India
4. Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Raipur, Chhattisgarh, India