[1] Pt BDS PGIMS, Dept Anaesthesiol, Rohtak, Haryana, India
[2] Pt BDS PGIMS, Charge Pain Management Ctr, Rohtak, Haryana, India
[3] Virinchi Hosp, Dept Anaesthesiol & Pain Med, Hyderabad, Telangana, India
[4] Delhi Area, Maj Gen, MG Med, Delhi, India
[5] Gian Sagar Med Coll & Hosp, Dept Anaesthesiol & Crit Care, Patiala, Punjab, India
[6] Narmada Trauma Ctr, Dept Anaesthesiol & Crit Care, Bhopal, Madhya Pradesh, India