1. Department of Gynaecology and Obstetrics, North Bengal Medical College & Hospital, Sushrutanagar, Darjeeling, West Bengal, India.
2. Department of Gynaecology and Obstetrics, Burdwan Medical College & Hospital, Burdwan, India.
3. Department of Pathology, North Bengal Medical College & Hospital, Sushrutanagar, Darjeeling, West Bengal, India.
4. Department of Dermatology, Burdwan Medical College & Hospital, Burdwan, India.
5. Department of Community Medicine, North Bengal Medical College & Hospital, Sushrutanagar, Darjeeling, West Bengal, India.