1. Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
2. Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, India
3. Department of Sociology and Social Work, Acharya Nagarjuna University, Vijayawada, India
4. Socio-behavioural, Health systems and Implementation Research (SHI) Division, Indian Council of Medical Research, New Delhi, India