Low-risk Prostate Cancer Patients Without Visible Tumor (T1c) On Multiparametric MRI Could Qualify for Active Surveillance Candidate Even If They Did Not Meet Inclusion Criteria of Active Surveillance Protocol - Seung Hwan Lee; Koon Ho Rha; Dong Hoon Lee; Kyo Chul Koo; Young Deuk Choi; Sung Joon Hong; Byung Ha Chung; Koo, Kyo Chul; Rha, Koon Ho; Lee, Dong Hoon; Lee, Seung Hwan; Chung, Byung Ha; et al. (Japanese Journal of Clinical Oncology, 2013)