[1] Tokushima Prefecture Cent Hosp, Dept Hematol, 1-10-3 Kuramoto, Tokushima 7708539, Japan
[2] Tokushima Prefecture Cent Hosp, Dept Cardiovasc Med, Tokushima, Japan
[3] Tokushima Prefecture Cent Hosp, Dept Orthoped Surg, Tokushima, Japan
[4] Tokushima Prefecture Cent Hosp, Dept Diagnost Pathol, Tokushima, Japan