[1] Hyogo Prefectural Amagasaki Gen Med Ctr, Hosp Care Res Unit, Amagasaki, Hyogo, Japan
[2] Hyogo Prefectural Amagasaki Gen Med Ctr, Dept Resp Med, Amagasaki, Hyogo, Japan
[3] Mie Univ, Dept Family Med, Grad Sch Med, Tsu, Mie, Japan
[4] Fukushima Med Univ, Shirakawa Satellite Teaching & Res STAR, Dept Gen Med, Fukushima, Japan
[5] Kyoritsu Hosp, Dept Nephrol & Dialysis, Nobeoka, Miyazaki, Japan
[6] Iizuka Hosp, Dept Nephrol, Iizuka, Fukuoka, Japan
[7] Iizuka Hosp, Clin Res Support Off, Iizuka, Fukuoka, Japan
[8] Fukushima Med Univ, Ctr Innovat Res Communities & Clin Excellence CiR, Fukushima, Japan