1. M.B.B.S., M.S. (Gen. Surgery), Senior Resident, Department ofSurgery, Nalanda Medical College and Hospital (NMCH), Patna, Bihar.
2. M.B.B.S., M.S. (Gen. Surgery), Associate Professor, Department ofSurgery, Nalanda Medical College and Hospital (NMCH), Patna, Bihar
3. Young Scientist (DST) Institute of Post-Graduate Medical Education and Research, A.J.C. Bose Road, Kolkata-700020, West Bengal, India.