The Prostate 25-Hydroxyvitamin D-1α-Hydroxylase is not Influenced by Parathyroid Hormone and Calcium: Implications for Prostate Cancer Chemoprevention by Vitamin D The Prostate 25-Hydroxyvitamin D-1α-Hydroxylase is not Influenced by Parathyroid Hormone and Calcium: Implications for Prostate Cancer Chemoprevention by Vitamin D2018-01-17T17:04:16-05:00