Parazzini, Fabio, Walter Artibani, Giuseppe Carrieri, Luca Carmignani, and Salvatore Voce. “Effect of Body Mass and Physical Activity at Younger Age on the Risk of Prostatic Enlargement and Erectile Dysfunction: Results from the 2018 #Controllati Survey”. Archivio Italiano di Urologia e Andrologia 91, no. 4 (January 14, 2020): 245-250. Accessed September 18, 2020.