[1] Fukushima Med Univ, Sch Med, Dept Pulm Med, Fukushima, Japan
[2] Fukushima Med Univ, Dept Gen Internal Med, Fukushima, Japan
[3] Fukushima Med Univ, Dept Diabet Endocrinol & Metab, Fukushima, Japan
[4] Fukushima Prefectural Inst Publ Hlth, Fukushima, Japan
[5] Fukushima Med Univ, Dept Emergency & Crit Care Med, Fukushima, Japan
[6] Fukushima Med Univ, Dept Infect Control, Fukushima, Japan