1. Department of Bioengineering & Technology, Gauhati University, Guwahati India.
2. Department of Medicine, Gauhati Medical College and Hospital, Guwahati, India.
3. Multidisciplinary Research Unit, Fakhruddin Ali Ahmed Medical College and Hospital, Barpeta, India.
4. Department of Obstetrics and Gynaecology, Gauhati Medical College and Hospital, Guwahati, India.
5. Epidemiology and Communicable Diseases Division, Indian Council of Medical Research, New Delhi, India.