1. Medical student
2. Department of Pathology; Fujita Health University School of Medicine; Toyoake
3. Department of Laboratory Medicine and
4. Surgery; Atsumi Hospital; Tahara
5. Department of Surgery; Toyohashi Medical Center; Toyohashi Aichi
6. Hinaga Gastrointestinal and Breast Clinic; Yokkaichi Mie
7. Minami-Nagano Koen Clinic; Nagano
8. Yokohama Breast and GI Clinic; Kohoku-ku Yokohama Kanagawa Japan