[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Genome Sci Div, Meguro Ku, Tokyo 1538904, Japan
[2] Univ Tokyo, Adv Sci & Technol Res Ctr, Dept Mol Biol & Med, Meguro Ku, Tokyo 1538904, Japan
[3] Univ Tokyo, Dept Internal Med 3, Bunkyo Ku, Tokyo 113, Japan
[4] Univ Tokyo, Dept Urol, Bunkyo Ku, Tokyo 113, Japan
[5] Univ Tokyo, Dept Human Genet, Bunkyo Ku, Tokyo 113, Japan
[6] Univ Tokushima, Dept Publ Hlth, Tokushima 770, Japan
[7] Banyu Tsukuba Res Inst Merck Res Labs, Tsukuba, Ibaraki, Japan