Citação norma APA

Piggott, D. A., Muzaale, A. D., Mehta, S. H., Brown, T. T., Patel, K. V., Leng, S. X., & Kirk, G. D. (2013). Frailty, HIV Infection, and Mortality in an Aging Cohort of Injection Drug Users. Public Library of Science.

Citação norma Chicago

Piggott, Damani A., Abimereki D. Muzaale, Shruti H. Mehta, Todd T. Brown, Kushang V. Patel, Sean X. Leng, and Gregory D. Kirk. Frailty, HIV Infection, and Mortality in an Aging Cohort of Injection Drug Users. Public Library of Science, 2013.

Citação norma MLA

Piggott, Damani A., et al. Frailty, HIV Infection, and Mortality in an Aging Cohort of Injection Drug Users. Public Library of Science, 2013.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.