1. MBBS, M.D. (Med.), Assistant Professor, Department of Medicine, Jawaharlal Nehru Medical College & Hospital, Bhagalpur, Bihar.
2. Associate Professor, Department of Medicine, Jawaharlal Nehru Medical College & Hospital, Bhagalpur, Bihar.
3. Young Scientist (DST), Institute of Post-Graduate Medical Education and Research, A.J.C. Bose Road, Kolkata-700020, West Bengal, India.