1Department of Parasitology, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-702, Korea.
2Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
3Department of Environmental Medical Biology, Yonsei University College of Medicine, Seoul 120-752, Korea.
4Department of Parasitology, Chungbuk National University College of Medicine, Cheongju 361-711, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/