1Department of Parasitology, College of Medicine and Institute of Medicine, Cheju National University, Jeju 690-756, Korea.
2Department of Molecular Parasitology, Sungkyunkwan University, College of Medicine, Suwon 440-746, Korea.
3Department of Parasitology, College of Medicine, Ewha Womans University, Seoul 158-710, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/