[1] Univ Occupat & Environm Hlth, Sch Med, Dept Pathol & Oncol, Kitakyushu, Fukuoka, Japan
[2] Tottori Univ, Fac Med, Div Organ Pathol, Yonago, Tottori, Japan
[3] Saiseikai Kumamoto Hosp, Dept Pathol, Kumamoto, Japan
[4] Okayama Univ Hosp, Dept Pathol, Okayama, Japan
[5] Kansai Med Univ Hosp, Dept Pathol & Diagnost, Hirakata, Osaka, Japan
[6] Shizuoka Canc Ctr, Pathol Div, Shizuoka, Japan
[7] Natl Canc Ctr, Pathol & Clin Lab Div, Tokyo, Japan
[8] Univ Ryukyus, Grad Sch Med Sci, Dept Pathol & Oncol, Nishihara, Okinawa, Japan
[9] Toyama Univ, Dept Diagnost Pathol, Fac Med, Toyama, Japan