1. Cancer statistics, 2008;Jemal;CA Cancer J. Clin.,2008
2. Etiology of hormone receptor-defined breast cancer: a systematic review of the literature;Althuis;Cancer Epidemiol. Biomarkers Prev.,2004
3. Vitamin D: biology, action and clinical implications;Feldman,2007
4. Calcitriol in cancer treatment: from the lab to the clinic;Beer;Mol. Cancer Ther.,2004
5. Vitamin D and breast cancer;Colston,2005