External beam radiotherapy versus radical prostatectomy for clinical stage T1-2 prostate cancer: therapeutic implications of stratification by pretreatment PSA levels and biopsy Gleason scores
A study published in Cancer Journal for Scientists and Clinicians (1997) compared the efficacy of external beam radiotherapy (RT) and radical prostatectomy (RP) for treating clinical stage T1-2 prostate cancer. The study included 551 patients and found that RP led to a 57% 5-year biochemical relapse-free survival rate, while RT