APA (7th ed.) Citation

Santos, A., Xerinda, S., Ferreira, A., Serrão, R., Abreu, C., Piñero, C., . . . Sarmento, A. (2012). Etiology and prognostic factors of HIV-infected patients admitted to an intensive care unit in a 20-year period.

Chicago Style (17th ed.) Citation

Santos, A., et al. Etiology and Prognostic Factors of HIV-infected Patients Admitted to an Intensive Care Unit in a 20-year Period. 2012.

MLA (8th ed.) Citation

Santos, A., et al. Etiology and Prognostic Factors of HIV-infected Patients Admitted to an Intensive Care Unit in a 20-year Period. 2012.

Warning: These citations may not always be 100% accurate.