1. Department of Internal Medicine, All India Institute of Medical Sciences, New Delhi, Department of Molecular Medicine, Jamia Hamdard Institute of Molecular Medicine, Hamdard University, New Delhi, Departments of General Medicine and Pulmonary
Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences, Wardha
2. Department of Internal Medicine, All India Institute of Medical Sciences, New Delhi
3. Department of Dermatology, Venerology and Leprology, Teerthankar Mahavir University, Moradabad, India