Chiang, A., A. Loblaw, V. Jethava, P. Sethukavalan, L. Zhang, D. Vesprini, A. Mamedov, R. Nam, and L. Klotz. “Utility of 5-Alpha-Reductase Inhibitors in Active Surveillance for Favourable Risk Prostate Cancer”. Canadian Urological Association Journal, vol. 7, no. 11-12, Dec. 2013, pp. 450-3, doi:10.5489/cuaj.262.