1Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul 110-799, Korea.
2Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
3Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea.
4Department of Parasitology and Medical Research Institute, Chungbuk National University College of Medicine, Cheongju 360-763, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/