Relationship between low ultraviolet B irradiance and higher breast cancer risk in 107 countries.
Mohr SB, Garland CF, Gorham ED, Grant WB, Garland FC.
Breast J. 2008 May-Jun;14(3):255-60. Epub 2008 Apr 17.
PMID: 18422861
DOI: 10.1111/j.1524-4741.2008.00571.x
There was a protective effect of UVB irradiance on risk of breast cancer that was independent of fertility rate, proportion of the population overweight, alcohol intake, animal energy intake, and other covariates.