cancers in gastrointestrinal tract esophageal cancer, gastric cancer, colon cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. First operation for cancer of gastrointestinal tract at International University of Health and Welfare hospital 2. Obtained informed consent
Exclusion criteria
Exclusion criteria: 1. Already taking vitamin D supplement or 1,25 vitamin D 2. History of kidney stone 3. Other difficulties judged by the surgeon in charge
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| relapse free survival overall survival | — |
Countries
Japan
Contacts
Jikei University School of Medicine Division of Molecular Epidemiology