title: Single umbilical artery and maternal smoking.
authors.affiliation: Department of Embryology, University of Lund, Sweden.
authors.forename: G M
authors.initials: GM
authors.lastname: Lilja
mesh_terms: D016001:Confidence Intervals; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D016017:Odds Ratio; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*; D014469:Umbilical Arteries / Q000002:abnormalities*