[1] Red Cross Hosp, Div Pediat, Komatsushima, Tokushima 7730015, Japan
[2] Red Cross Hosp, Div Pathol, Komatsushima, Tokushima 7730015, Japan
[3] Red Cross Hosp, Div Urol, Komatsushima, Tokushima 7730015, Japan
[4] Univ Tokushima, Sch Med, Dept Pathol, Tokushima 770, Japan