[1] Indiana Univ Sch Med, Dept Pathol & Lab Med, Indianapolis, IN 46202 USA
[2] Kaohsiung Chang Gung Mem Hosp, Dept Pathol, Kaohsiung 833, Taiwan
[3] Chang Gung Univ, Coll Med, Kaohsiung 833, Taiwan
[4] Kaohsiung Chang Gung Mem Hosp, Dept Lab Med, Kaohsiung 833, Taiwan
[5] Indiana Univ Sch Med, Dept Urol, Indianapolis, IN 46202 USA