Schultheis, PaigeMontoya, Melissa NatalieZhao, QiuhongArcher, JohannaMadden, TessaPeipert, Jeffrey F.2021-02-122021-02-122021-02Schultheis, P., Montoya, M. N., Zhao, Q., Archer, J., Madden, T., & Peipert, J. F. (2021). Contraception and ectopic pregnancy risk: A prospective observational analysis. American Journal of Obstetrics & Gynecology, 224(2), 228–229. https://doi.org/10.1016/j.ajog.2020.10.013https://hdl.handle.net/1805/25205enPublisher Policycontraceptionectopic pregnancyContraceptive CHOICE ProjectArticle