[1] Kasturba Med Coll & Hosp, Emergency Med, Manipal, India
[2] All India Inst Med Sci, Emergency Med, New Delhi, India
[3] Jubilee Miss Med Coll & Res Inst, Emergency Med, Trichur, India
[4] Agartala Govt Med Coll, Emergency Med, Agartala, India
[5] Srikakulam Govt Med Coll, Emergency Med, Navi Mumbai, India
[6] Kasturba Med Coll & Hosp, Emergency Med, Manipal, India
[7] Univ Penn, Perelman Sch Med, Dept Anesthesiol & Crit Care, Philadelphia, PA USA
[8] Univ Oxford, Dept Neurol, Oxford, England
[9] Oxford Univ Hosp, Dept Neurol, Oxford, England
[10] Kings Coll London, Dept Neurol, London, England