APA (7th ed.) Citation

Gemzell-Danielsson, K., Rabe, T., & Cheng, L. (2013). Emergency contraception. Gynecological endocrinology, 29, . https://doi.org/10.3109/09513590.2013.774591

Chicago Style (17th ed.) Citation

Gemzell-Danielsson, Kristina, Thomas Rabe, and Linan Cheng. "Emergency Contraception." Gynecological Endocrinology 29 (2013). https://doi.org/10.3109/09513590.2013.774591.

MLA (9th ed.) Citation

Gemzell-Danielsson, Kristina, et al. "Emergency Contraception." Gynecological Endocrinology, vol. 29, 2013, https://doi.org/10.3109/09513590.2013.774591.