title: Critical illness due to 2009 A/H1N1 influenza in pregnant and postpartum women: population based cohort study.
mesh_terms: D000293:Adolescent; D000328:Adult; D001315:Australia / Q000453:epidemiology; D015331:Cohort Studies; D003422:Critical Care / Q000706:statistics & numerical data; D016638:Critical Illness; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000150:complications / Q000453:epidemiology*; D009520:New Zealand / Q000453:epidemiology; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*; D011256:Pregnancy Outcome; D011295:Prenatal Care / Q000706:statistics & numerical data; D012307:Risk Factors; D055815:Young Adult