Potkul, Ronald K Randomized trial of medroxyprogesterone acetate for the prevention of endometrial pathology from adjuvant tamoxifen for breast cancer: SWOG S9630. [electronic resource] - NPJ breast cancer 2016 - 16024 p. digital Publication Type: Journal Article ISSN: 2374-4677 Standard No.: 10.1038/npjbcancer.2016.24 doi