1. Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
2. RK and VM contributed equally to the manuscript and are the joint first authors. E-mail: agarwal.ritesh@outlook.in
3. Department of Internal Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
4. Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
5. Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
6. Director, Doodhadhari Burfani Hospital, Haridwar, Uttarakhand, India