APA (7th ed.) Citation

Kilpatrick, S. J., Menard, M. K., Zahn, C. M., & Callaghan, W. M. (2019). Obstetric Care Consensus #9: Levels of Maternal Care. American journal of obstetrics and gynecology, 221(6), B19-B30. https://doi.org/10.1016/j.ajog.2019.05.046

Chicago Style (17th ed.) Citation

Kilpatrick, Sarah J., M. Kathryn Menard, Christopher M. Zahn, and William M. Callaghan. "Obstetric Care Consensus #9: Levels of Maternal Care." American Journal of Obstetrics and Gynecology 221, no. 6 (2019): B19-B30. https://doi.org/10.1016/j.ajog.2019.05.046.

MLA (9th ed.) Citation

Kilpatrick, Sarah J., et al. "Obstetric Care Consensus #9: Levels of Maternal Care." American Journal of Obstetrics and Gynecology, vol. 221, no. 6, 2019, pp. B19-B30, https://doi.org/10.1016/j.ajog.2019.05.046.