Cholecalciferol and Calcium Carbonate in Treating Patients With Colon Cancer That Has Been Removed by Surgery
Roswell Park Cancer Institute
Roswell Park Cancer Institute
City of Hope Medical Center
Fox Chase Cancer Center
Roswell Park Cancer Institute
National Cancer Institute (NCI)
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
City of Hope Medical Center
Vanderbilt-Ingram Cancer Center