title: Perinatal epidemiologic research with vital statistics data: validity is the essential quality.
authors: Cande V
authors: CV
authors: Ananth
mesh_terms: D004812:Epidemiologic Methods; D005315:Fetal Diseases / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology*; D015203:Reproducibility of Results; D012106:Research; D014798:Vital Statistics