1. Department of Pharmacology, University College of Medical Sciences and G. T. B. Hospital, New Delhi, India,
2. Department of Biochemistry, University College of Medical Sciences and G. T. B. Hospital, New Delhi, India,
3. Central Animal House, University College of Medical Sciences and G. T. B. Hospital, New Delhi, India,
4. Department of Pharmacology, Vardhman Mahavir Medical College, Safdarjung Hospital, New Delhi, India, and
5. Department of Pharmacology, School of Medical Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India