[1] Univ Hosp Cleveland, Res Inst, Cleveland, OH 44106 USA
[2] Case Western Reserve Univ, Cleveland, OH 44106 USA
[3] VA Med Serv, Cleveland, OH USA
[4] Epidemiol & Biostat, Cleveland, OH USA
[5] Leicester Royal Infirm, Leicester, Leics, England
[6] Tokyo Womens Med Univ, Tokyo, Japan
[7] Hamamatsu Univ Sch Med, Hamamatsu, Shizuoka 43131, Japan
[8] Jichi Med Sch, Minami Kawachi, Tochigi 32904, Japan