1. Aichi Prefectural Institute of Public Health, Tsuji-machi, Kita, Nagoya 462, Japan, Research Center for Pathogenic Fungi and Microbial Toxicoses, Chiba University, Inohana, Chuo, Chiba 260, Japan, Faculty of Pharmaceutical Sciences, Science University of Tokyo, Ichigaya, Tokyo 162, Japan, and Faculty of Pharmacy, Meijo University, Tempaku, Nagoya 468, Japan