1. Department of Anatomy (Macro), Dokkyo Medical University, School of Medicine, Tochigi, Japan
2. Department of General Surgery, Dalian Medical University, 1st Affiliated Hospital, Dalian, China
3. Laboratory of Microbiology and Molecular Genetics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
4. Division of Surgery, Department of Surgical Specialties, National Center for Child Health and Development, Tokyo, Japan
5. Department of Gynecology, Dalian Medical University, 1st Affiliated Hospital, Dalian, China
6. Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences and WPI-Immunology Frontier Research Center, Osaka University, Osaka, Japan