Saad, F., F. Pouliot, B. Danielson, C. Catton, and A. Kapoor. “Symptom Assessment to Guide Treatment Selection and Determine Progression in Metastatic Castration-Resistant Prostate Cancer: Expert Opinion and Review of the Evidence”. Canadian Urological Association Journal, vol. 12, no. 9, May 2018, pp. E415-20, doi:10.5489/cuaj.5154.