[1] Matsuyama Red Cross Hosp, Dept Pathol, Matsuyama, Ehime, Japan
[2] Dept Clin Lab, Kitakyushu, Fukuoka, Japan
[3] Kitakyushu Municipal Med Ctr, Kitakyushu, Fukuoka, Japan
[4] Kochi Red Cross Hosp, Dept Diagnost Pathol, Kochi, Japan
[5] Charles Univ Prague, Fac Med Pilsen, Dept Pathol, Plzen, Czech Republic