1. Senior Resident, Department of Medicine, Atal Bihari Vajpayee Institute of Medical Sciences & Dr RML Hospital, New Delhi, India
2. Postgraduate, Department of Medicine, Atal Bihari Vajpayee Institute of Medical Sciences & Dr RML Hospital, New Delhi, India
3. Professor, Department of Medicine, Atal Bihari Vajpayee Institute of Medical Sciences & Dr RML Hospital, New Delhi, India