02 Studying the Erectile Function Impact of Vitamin D Therapy in Patients with ED: Interim Analysis From A Randomized Controlled Study. Issue 12 (1st December 2017) - Habous, Mohamad; Abdelwahab, Osama; Laban, Osama; Mahmoud, Saad; Nassar, Mohammed; Tealab, Alaa; Binsaleh, Saleh; Mulhall, John