Citação norma APA

Kayem, G., Kurinczuk, J., Lewis, G., Golightly, S., Brocklehurst, P., & Knight, M. (2011). Risk factors for progression from severe maternal morbidity to death: A national cohort study. Public Library of Science.

Citação norma Chicago

Kayem, G., J. Kurinczuk, G. Lewis, S. Golightly, P. Brocklehurst, and M. Knight. Risk Factors for Progression from Severe Maternal Morbidity to Death: A National Cohort Study. Public Library of Science, 2011.

Citação norma MLA

Kayem, G., et al. Risk Factors for Progression from Severe Maternal Morbidity to Death: A National Cohort Study. Public Library of Science, 2011.

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