1. Department of UrologyNational Cheng Kung University HospitalCollege of MedicineNational Cheng Kung University Tainan Taiwan
2. Department of UrologyChia‐Yi Christian Hospital Chia‐Yi Taiwan
3. Department of Microbiology and ImmunologyCollege of MedicineNational Cheng Kung University Tainan Taiwan
4. Department of Biochemistry and Molecular biologyCollege of MedicineNational Cheng Kung University Tainan Taiwan
5. Department of UrologyAn‐Nan HospitalChina Medical University Tainan Taiwan