APA (7th ed.) Citation

Simms, I., Warburton, F., Weström, L., & Weström, L. (2003). Diagnosis of pelvic inflammatory disease: Time for a rethink. Sexually Transmitted Infections, 79(6), 491. https://doi.org/10.1136/sti.79.6.491

Chicago Style (17th ed.) Citation

Simms, I., F. Warburton, L. Weström, and L. Weström. "Diagnosis of Pelvic Inflammatory Disease: Time for a Rethink." Sexually Transmitted Infections 79, no. 6 (2003): 491. https://doi.org/10.1136/sti.79.6.491.

MLA (9th ed.) Citation

Simms, I., et al. "Diagnosis of Pelvic Inflammatory Disease: Time for a Rethink." Sexually Transmitted Infections, vol. 79, no. 6, 2003, p. 491, https://doi.org/10.1136/sti.79.6.491.