title: Canadian Perinatal Surveillance System.
authors.forename: C
authors.initials: C
authors.lastname: Levitt
mesh_terms: D002170:Canada / Q000453:epidemiology; D005260:Female; D006801:Humans; D007229:Infant Welfare; D007231:Infant, Newborn; D008429:Maternal Welfare; D011159:Population Surveillance / Q000379:methods*; D011247:Pregnancy; D011256:Pregnancy Outcome