APA (7th ed.) Citation

SB, Z., Jr, K. B., JS, K., & C, B. (2002). Surveillance in a time of changing health care practices: Estimating ectopic pregnancy incidence in the United States. Maternal & Child Health Journal, 6(4), 227. https://doi.org/10.1023/a:1021106032198

Chicago Style (17th ed.) Citation

SB, Zane, Kieke BA Jr, Kendrick JS, and Bruce C. "Surveillance in a Time of Changing Health Care Practices: Estimating Ectopic Pregnancy Incidence in the United States." Maternal & Child Health Journal 6, no. 4 (2002): 227. https://doi.org/10.1023/a:1021106032198.

MLA (9th ed.) Citation

SB, Zane, et al. "Surveillance in a Time of Changing Health Care Practices: Estimating Ectopic Pregnancy Incidence in the United States." Maternal & Child Health Journal, vol. 6, no. 4, 2002, p. 227, https://doi.org/10.1023/a:1021106032198.