Citation:Larsson SC, Giovannucci E, Wolk A 2007
From National Cancer Control Policy
Larsson SC, Giovannucci E, Wolk A. Folate and risk of breast cancer: a meta-analysis. J Natl Cancer Inst 2007 Jan 3;99(1):64-76 Available from: http://www.ncbi.nlm.nih.gov/pubmed/17202114.
Critical appraisals