1. Department of Obstetrics and Gynaecology , Pt. B.D. Sharma PGIMS , Rohtak , Haryana , India
2. Department of Obstetrics and Gynaecology , Employees’ State Insurance Corporation Hospital , Noida , Uttar Pradesh , India
3. Department of Obstetrics and Gynaecology , All India Institute of Medical Sciences , Bilaspur , Himachal Pradesh , India
4. Centre for Biotechnology , Maharshi Dayanand University , Rohtak , Haryana , India