title: SIDS among twins: a confounded relationship.
authors.forename: Michael H
authors.initials: MH
authors.lastname: Malloy
authors.forename: Daniel H
authors.initials: DH
authors.lastname: Freeman
mesh_terms: D004200:Diseases in Twins / Q000453:epidemiology*; D005865:Gestational Age; D006801:Humans; D015994:Incidence; D007223:Infant; D013398:Sudden Infant Death / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology