1. 1Department of Pharmacology, Agartala Government Medical College, Agartala, Tripura, India.
2. 2Department of Pharmacology, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Wardha, Maharashtra. India.
3. 3Department of Pharmacology, Tripura Medical College and Dr BRAM Teaching Hospital, Hapania, Agartala, Tripura, India.