Phase 2 trial of weekly intravenous 1,25 dihydroxy cholecalciferol (calcitriol) in combination with dexamethasone for castration-resistant prostate cancer - Chadha, M K; Tian, L; Mashtare, T; Payne, V; Silliman, C; Levine, E; Wong, M; Johnson, C; Trump, D L (Cancer, 2010)