APA引文

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.

Chicago Style (17th ed.) Citation

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.

MLA引文

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