1. Mohammad Irfan Akhtar:
Department of Anaesthesia, Aga Khan University Hospital, Karachi, Pakistan
2. Mohammad Hamid:
Department of Anaesthesia, Aga Khan University Hospital, Karachi, Pakistan
3. Muneer Amanullah:
Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan
4. Khalid Ahsan:
Department of Anaesthesia, Aga Khan University Hospital, Karachi, Pakistan