1. Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
2. Department of Microbiology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
3. Department of Pulmonary Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
4. Department of Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
5. Department of Radiodiagnosis, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
6. Department of Microbiology, All India Institute of Medical Sciences, Guwahati, India