1. Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, 160012, India
2. Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Research Block A, Chandigarh, 160012, India
3. Department of Endocrinology, Postgraduate Institute of Medical Education and Research, Nehru Hospital Extension, Chandigarh, 160012, India