Breast-cancer risk: higher with estrogen-progestin than estrogen alone.

MLA

Miller, J. L. “Breast-Cancer Risk: Higher with Estrogen-Progestin than Estrogen Alone.” American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists, vol. 57, no. 7, Apr. 2000, pp. 635–36. EBSCOhost, https://doi.org/10.1093/ajhp/57.7.635.

APA

Miller, J. L. (2000). Breast-cancer risk: higher with estrogen-progestin than estrogen alone. American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists, 57(7), 635–636. https://doi.org/10.1093/ajhp/57.7.635

Chicago

Miller, J L. 2000. “Breast-Cancer Risk: Higher with Estrogen-Progestin than Estrogen Alone.” American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists 57 (7): 635–36. doi:10.1093/ajhp/57.7.635.