1. M.B.B.S., M.S. (Gen. Surgery), Senior Resident, Department ofGeneral Surgery, Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, Bihar.
2. M.B.B.S., M.S. (Gen. Surgery), Senior Resident, Department of General Surgery, Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, Bihar
3. M.B.B.S., M.S. (Gen. Surgery), FIAS, FIANT.S Additional Professor, Department of General Surgery, Indira Gandhi Institute of Medical Sciences (IGIMS), Patna, Bihar
4. Young Scientist (DST) Institute of Post-Graduate Medical Education and Research, A.J.C. Bose Road, Kolkata-700020, West Bengal, India