1: Schindler AE. Dydrogesterone and other progestins in benign breast disease: an overview. Arch Gynecol Obstet. 2011 Feb;283(2):369-71. doi: 10.1007/s00404-010-1456-7. Epub 2010 Apr 11. Review. PubMed PMID: 20383772.
2: Pasqualini JR. Breast cancer and steroid metabolizing enzymes: the role of progestogens. Maturitas. 2009 Dec;65 Suppl 1:S17-21. doi: 10.1016/j.maturitas.2009.11.006. Epub 2009 Dec 3. Review. PubMed PMID: 19962254.
3: Pasqualini JR. Estrogen sulfotransferases in breast and endometrial cancers. Ann N Y Acad Sci. 2009 Feb;1155:88-98. doi: 10.1111/j.1749-6632.2009.04113.x. Review. PubMed PMID: 19250196.