1. Department of Obstetrics and Gynecology, Pt. B.D. Sharma PGIMS, Rihtak, Haryana, India.
2. Department of Pediatric Surgery, Pt. B.D. Sharma PGIMS, Rihtak, Haryana, India.
3. Department of Radiodiagnosis, Pt. B.D. Sharma PGIMS, Rihtak, Haryana, India.
4. Indian Council of Medical Research, New Delhi, Delhi, India.