1. Arumigu Kalasalingam College of Pharmacy, Krishnankoil-626 190, India
2. Institute of Pharmacology, Madurai Medical College, Madurai-625 020, India
3. Bharat Ratna Kamarajar Liver Hospital and Research Centre, Madurai-625 001, India
4. Institute of Antiviral Research, Utah State University, Logan, UT, USA