EpisiotomyPerineumObstetric Labor ComplicationsLabor Stage, SecondDelivery, ObstetricLacerationsObstetrical ForcepsDyspareuniaObstetricsNurse MidwivesHospitals, MaternityExtraction, ObstetricalPostural BalanceVacuum Extraction, ObstetricalParityBody PatterningDidelphisPregnancyFecal IncontinenceGastrulaAnal CanalGravitationFlatulencePelvic FloorMorphogenesisBiomechanical PhenomenaMidwiferyDelivery RoomsThiamine MonophosphateNotochordEmbryo, NonmammalianSomitesGaitEmbryonic InductionUrinary Incontinence, UrgePostpartum HemorrhageFemale Urogenital DiseasesParturitionAxonsGene Expression Regulation, DevelopmentalMesoderm