Hovde Hall, Purdue University, 47907, West Lafayette, IN, USA
V. E. Tyler
Division of Analytical Chemistry, Center for Bio-Pharmaceutical Sciences, Leiden University, Gorlaeus Laboratories, P.O. Box 9502, 2300, RZ Leiden, The Netherlands
J. van der Greef
Division of Pharmacognosy, School of Pharmacy, University of Helsinki, Fabianinkatu 35, 00170, Helsinki, Finland
R. Hiltunen
Institute of Pharmacognosy and Phytochemistry, Free University Berlin, Königin-Luise Strasse 2+4, 1000, Berlin 33, F.R.G.
H. Schilcher
Department of Medicinal, Aromatic and Spice Crops, Agricultural Research Organization, Volcani Center, P.O. Box 6, 50 250, Bet Dagan, Israel
D. Palevitch
Institute of Pharmacognosy and Phytochemistry, Free University Berlin, Königin-Luise Strasse 2+4, 1000, Berlin 33, F.R.G.
R. Häneal