1. Department of Obstetrics & Gynecology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
2. Department of Obstetrics & Gynecology, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra, Himachal Pradesh, India.
3. Department of Pathology, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra, Himachal Pradesh, India.