1 Department of Public Health Nutrition, Sam Higginbottom University of Agriculture Technologies and Sciences, Allahabad, India.
2 Department of Pharmacy Practice, SRM College of Pharmacy, SRM Institute of Science and Technology, Tamil Nadu, India.
3 Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
4 Indian Institute of Public Health, Delhi, India.
5 Indian Institute of Public Health, Gandhi Nagar, India.
6 Maulana Azad Medical College, New Delhi, India.
7 Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
8 Department of Neurology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
9 Department of Neurology and Ophthalmology, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, USAnstitute of Global Health, Michigan State University, East Lansing, MI, USA.
10 Tribhuvan University Teaching Hospital, Kathmandu, Nepal.
11 Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India. Electronic address: padhi.bijaya@pgimer.edu.in.