BXL628, a novel vitamin D3 analog arrests prostate growth in patients with benign prostatic hyperplasia: A randomized clinical trial - Colli, E; Rigatti, P; Montorsi, F; Artibani, W; Petta, S; Mondaini, N; Scarpa, R; Usai, P; Olivieri, L; Maggi, M (Eur Urol, 2006)