1. Division of Developmental Biology, Department of Parasitology, Nara Medical University, Kashihara, Nara, Japan
2. Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
3. Second Department of Anatomy, Nara Medical University, Kashihara, Nara, Japan
4. Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara, Japan