Rizk, D E Relationship between the length of the perineum and position of the anus and vaginal delivery in primigravidae. [electronic resource] - International urogynecology journal and pelvic floor dysfunction 2000 - 79-83 p. digital Publication Type: Journal Article Standard No.: 10.1007/s001920050074 doi Subjects--Topical Terms: AdultAnal Canal--injuriesAnthropometryApgar ScoreEpisiotomyExtraction, ObstetricalFemaleHumansInfant, NewbornMaleObstetric Labor Complications--etiologyParity--physiologyPerineum--injuriesPregnancyRisk FactorsVagina--injuries