1. Central Research Laboratory, PGIMSR and ESI hospital, Kankurgachhi, Kolkata, West Bengal, India
2. Reproductive Medicine Unit, Calcutta Fertility Mission, Kolkata, West Bengal, India
3. Amity Institute of Biotechnology Kolkata, Amity University Kolkata, Major Arterial Road (South-East), Action Area II, Newtown, Kolkata, West Bengal, India
4. Department of Statistics, Acharya Prafulla Chandra College, West Bengal, India