Reply to Chris Parker, Matthew R. Sydes and Howard Kynaston's Letter to the Editor re: Firas Abdollah, Nazareno Suardi, Cesare Cozzarini, et al. Selecting the Optimal Candidate for Adjuvant Radiotherapy After Radical Prostatectomy for Prostate Cancer: A Long-term Survival Analysis. Eur Urol 2013;63:998-1008.