Department of Community Medicine & School of Public Health, Postgraduate Institute of Medical Education & Research, Chandigarh, India; National Health Authority, Government of India, New Delhi, India; Corresponding author. Department of Community Medicine & School of Public Health, Postgraduate Institute of Medical Education & Research, Chandigarh, India.
Maninder Pal Singh
Department of Community Medicine & School of Public Health, Postgraduate Institute of Medical Education & Research, Chandigarh, India
Pankaj Bahuguna
Department of Community Medicine & School of Public Health, Postgraduate Institute of Medical Education & Research, Chandigarh, India
