NCT00550563 2017-04-04
DNA Changes That Affect Vitamin D Metabolism in Patients With Colorectal Cancer Receiving Vitamin D Supplements
Roswell Park Cancer Institute
Phase NA Completed
Roswell Park Cancer Institute
California Cancer Consortium
Indiana University
City of Hope Medical Center
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Case Comprehensive Cancer Center
National Cancer Institute (NCI)