Age Determination by SkeletonAge Determination by TeethHand BonesCarpal BonesGestational AgeHandInfant, Small for Gestational AgeInfant, NewbornPregnancyInfant, PrematureBirth WeightUltrasonography, PrenatalPremature BirthPregnancy OutcomeFetal Growth RetardationInfant, Premature, DiseasesInfant, Low Birth WeightPregnancy Trimester, SecondRisk AssessmentFetusPregnancy Trimester, ThirdFetal DevelopmentInfant, Very Low Birth WeightPregnancy ComplicationsObstetric Labor, PrematureProspective StudiesCrown-Rump LengthPregnancy Trimester, FirstAmniotic FluidIntensive Care Units, NeonatalTerm BirthFetal HeartFetal DiseasesMaternal Age