Affiliation: | Department of Parasitology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108,1. Exploratory Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., 5-2-3 Tokodai, Tsukuba-shi, Ibaraki, 300-26,2. and Toxicology Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., 2-1-6 Kashima, Yodogawa-ku, Osaka-shi, Osaka, 532,3. Japan, and Biotechnology Center, Institute for Medical Research, Jalan Pahang 50588, Kuala Lumpur, Malaysia4. |