1. Department of Physiology, All India Institute of Medical Sciences Bibinagar, Hyderabad, Telangana, India
2. Department of Physiology, ESIC Medical College, Hyderabad, Telangana, India
3. Govind Ballabh Pant Hospital, Agartala Government Medical College, Agartala, Tripura, India
4. Department of General Medicine, All India Institute of Medical Sciences, Hyderabad, Telangana, India,