1. Senior Resident of Microbiology, Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
2. Professor, Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
3. Additional Professor Department of Gastroenterology, All India Institute of Medical Sciences, Rishikesh, India
4. Professor & Head, Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India