1. ssistant Professor, Department of Community Medicine, IPGME & R, SSKM Hospital, Kolkata, West Bengal, India.
2. Junior Resident Department of Community Medicine, IPGME & R, SSKM Hospital, Kolkata, West Bengal, India. ,
3. Professor and Head Department of Community Medicine, IPGME & R, SSKM Hospital, Kolkata, West Bengal, India. ,
4. unior Resident, Department of Community Medicine, IPGME & R, SSKM Hospital, Kolkata, West Bengal, India. ,
5. Associate Professor Department of Community Medicine, IPGME & R, SSKM Hospital, Kolkata, West Bengal, India.
6. Professor and Head, Department of Community Medicine, ICARE Institute of Medical Science and Research (IIMSAR) and Dr. B.C. Roy Hospial, Haldia, West Bengal, India.