[1] Toranomon Gen Hosp, Nephrol Ctr, Tokyo, Japan
[2] Toranomon Gen Hosp, Dept Rheumatol, Tokyo, Japan
[3] Toranomon Gen Hosp, Dept Pathol, Tokyo, Japan
[4] Okinaka Mem Inst Med Res, Tokyo, Japan
[5] Toranomon Gen Hosp, Colorectal Surg Unit, Dept Digest Surg, Tokyo, Japan
[6] Yokohama City Univ, Grad Sch Med, Dept Pathol, Yokohama, Kanagawa, Japan