Affiliation: | aDepartment of Parasitology, Miyazaki Medical College, Kiyotake, Miyazaki 889-26, Japan;bDepartment of Medical Zoology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan;cDepartment of Parasitology, Catholic University Medical College, Seoul, Korea;department of Medical Zoology, Nagoya City University, Nagoya, Japan |