1. Department of Pathology, National Cheng Kung University Hospital, Tainan, Taiwan, Republic of China
2. Graduate Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
3. Department of Urology, National Cheng Kung University Hospital, Tainan, Taiwan, Republic of China
4. Department of General Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany