leonardo apotheke hamburg mittelweg Injectable Contraceptives May Increase Breast Cancer Risk In Younger WomenThe first large-scale U.S.-based study to evaluate the link between an injectable form of progestin-only birth control and breast cancer risk in young women has found that recent use of a year or more doubles the risk. The results of the study, led by breast cancer epidemiologist Christopher I. Li, M.D., Ph.D
