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