1. Department of Community Medicine, Rani Durgawati Medical College, Banda, Uttar Pradesh, India
2. Department of Community Medicine, SN Medical College, Agra, Uttar Pradesh, India
3. Department of Community Medicine, Uttar Pradesh University of Medical Sciences, Etawah, Uttar Pradesh, India
4. Department of Physiology, Uttar Pradesh University of Medical Sciences, Etawah, Uttar Pradesh, India