MeconiumFetal DistressMeconium Aspiration SyndromeFetal MonitoringCardiotocographyCesarean SectionApgar ScorePregnancyFetal HypoxiaExtraction, ObstetricalInfant, NewbornBreech PresentationObstetrical ForcepsObstetric Labor ComplicationsAsphyxia NeonatorumUmbilical ArteriesCephalopelvic DisproportionRespiratory Distress Syndrome, AdultLabor Stage, SecondLabor, InducedLabor, ObstetricHeart Rate, FetalFetal HeartPregnancy ComplicationsDystociaPregnancy OutcomeRespiratory Distress Syndrome, NewbornPregnancy, ProlongedFetal DeathFetal DiseasesGestational AgeFetal Growth RetardationUltrasonography, PrenatalDelivery, ObstetricPregnancy Trimester, ThirdStress, PsychologicalIleusIntestinal ObstructionFetal BloodAmniotic FluidPlacentaBirth WeightParityIleal DiseasesMaternal-Fetal ExchangeUltrasonography, DopplerProspective StudiesInfant, Newborn, DiseasesRetrospective StudiesSubstance Abuse Detection