title: Cardiac arrest after tramadol injection in a polytrauma patient.
authors.affiliation: Department of Anesthesia and Critical Care, Trauma Centre, JPNA Trauma Centre, AIIMS, New Delhi, India.
authors.forename: Sukhen
authors.initials: S
authors.lastname: Samanta
authors.affiliation: Department of Critical Care Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Luckow, Uttar Pradesh, India.
authors.forename: Sujay
authors.initials: S
authors.lastname: Samanta
authors.affiliation: Department of Orthopedics, Safdarjung Hospital, New Delhi, India.
authors.forename: Daipayan
authors.initials: D
authors.lastname: Chatterjee
authors.affiliation: Department of Anesthesia and Critical Care, Trauma Centre, JPNA Trauma Centre, AIIMS, New Delhi, India.
authors.forename: Kapil Dev
authors.initials: KD
authors.lastname: Soni