Affiliation: | a Department of Tumor Genetics and Biology, Kumamoto University School of Medicine, 2-2-1 Honjo, Kumamoto 860, Japan b Biomedical R&D Department, Sumitomo Electric Industries Ltd, Yokohama 244, Japan c Departamento de Medicina Tropical, Facultad de Medicina, Universidad Catolica de Santiago de Guayaquil, Guayaquil Ecuador d Department of Dermatology and the Research Center of Comprehensive Medicine, Faculty of Medicine, University of Ryukyus, Nishihara, Okinawa 903-01, Japan e Department of Parasitology, Kochi Medical School, Nankoku, Kochi 783, Japan f Institute for Laboratory Animals, Kochi Medical School, Nankoku, Kochi 783, Japan |