1. Laboratory of Molecular Virology and Oncology (LMVO), Department of Bioengineering and Technology, Gauhati University, Guwahati, Assam, India.
2. Department of Gastroenterology, Gauhati Medical College and Hospital, Guwahati, Assam, India.
3. Division of Epidemiology & Communicable Diseases, Indian Council of Medical Research, New Delhi, India.