APA (7th ed.) Citation

Zetola, N. M., & Klausner, J. D. (2007). Syphilis and HIV infection: An update. Clinical infectious diseases, 44(9), 1222. https://doi.org/10.1086/513427

Chicago Style (17th ed.) Citation

Zetola, Nicola M., and Jeffrey D. Klausner. "Syphilis and HIV Infection: An Update." Clinical Infectious Diseases 44, no. 9 (2007): 1222. https://doi.org/10.1086/513427.

MLA (9th ed.) Citation

Zetola, Nicola M., and Jeffrey D. Klausner. "Syphilis and HIV Infection: An Update." Clinical Infectious Diseases, vol. 44, no. 9, 2007, p. 1222, https://doi.org/10.1086/513427.