1. Department of Parasitology and Institute of Malariology, Inje University College of Medicine, Pusan 614-735, Korea.
2. Department of Biochemistry, Inje University College of Medicine, Pusan 614-735, Korea.
3. Department of Parasitology and Institute of Endemic Diseases, Seoul National University College of Medicine, SNUMRC Seoul 110-799, Korea.
4. Department of Medical Zoology, National Institute of Health, Seoul 122-701, Korea.