1. Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
2. Department of Infectious Diseases, All India Institute of Medical Sciences, New Delhi, India
3. Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
4. Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
5. Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India,