1. Resident, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
2. Professor, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
3. Additional Professor, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
4. Research Fellow, Public Health Foundation of India, New Delhi, India
5. Assistant Professor, Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Bhopal, India