[1] Juntendo Univ, Urayasu Hosp, Dept Pathol, Chiba, Japan
[2] Juntendo Univ, Sch Med, Dept Pathol & Oncol, Bunkyo Ku, Tokyo, Japan
[3] Juntendo Univ, Sch Med, Dept Human Pathol, Bunkyo Ku, Tokyo, Japan
[4] Tokyo Womens Med Univ Hosp, Dept Surg Pathol, Shinjuku Ku, Tokyo, Japan
[5] DOKKYO Med Univ, Saitama Med Ctr, Dept Pathol, Koshigaya, Saitama, Japan
[6] Juntendo Univ, Urayasu Hosp, Dept Urol, Chiba, Japan