Institution: | 1. Department of Drug Sciences, University of Pavia, Pavia, Italy;2. Center for Studies and Researches in Ethnopharmacy, (C.I.St.R.E.), University of Pavia, Pavia, Italy;3. School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CH-1211 Geneva 4, Switzerland;4. Laboratory of Pharmacology and Toxicology, University of Yaoundé I, P. O. Box 812, Yaoundé, Cameroon |