Serum levels of 25-hydroxyvitamin D and survival in Norwegian patients with cancer of breast, colon, lung, and lymphoma: a population-based study.
Cancer Causes Control. 2012 Feb;23(2):363-70. doi: 10.1007/s10552-011-9885-6. Epub 2011 Dec 23.
Cancer Causes Control. 2012.
PMID: 22193397
Free PMC article.