Cita APA (7a ed.)

Phillips, A., & Walker, A. (2004). Drug switching and virologic-based endpoints in trials of antiretroviral drugs for HIV infection.

Cita Chicago Style (17a ed.)

Phillips, A., y A. Walker. Drug Switching and Virologic-based Endpoints in Trials of Antiretroviral Drugs for HIV Infection. 2004.

Cita MLA (9a ed.)

Phillips, A., y A. Walker. Drug Switching and Virologic-based Endpoints in Trials of Antiretroviral Drugs for HIV Infection. 2004.