Powrie, R. (2009). Three recent case series of novel H1N1 influenza and their contribution to our understanding of the H1N1 infection in pregnancy. Obstet Med.
Citação norma ChicagoPowrie, Raymond. "Three Recent Case Series of Novel H1N1 Influenza and Their Contribution to Our Understanding of the H1N1 Infection in Pregnancy." Obstet Med 2009.
Citação norma MLAPowrie, Raymond. "Three Recent Case Series of Novel H1N1 Influenza and Their Contribution to Our Understanding of the H1N1 Infection in Pregnancy." Obstet Med 2009.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.