de Araújo, A M Parental characteristics and birthweight in a Brazilian population. [electronic resource] - Human biology Feb 1975 - 37-43 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0018-7143 Subjects--Topical Terms: Age FactorsBirth WeightBody HeightBody WeightBrazilEthnicityFemaleGestational AgeHumansInfant, NewbornInfant, PrematureMaleMarriageParityPregnancyRegression AnalysisSex FactorsSocioeconomic Factors