title: Quantification of fetal head direction and descent.
authors.forename: B
authors.initials: B
authors.lastname: Tutschek
authors.forename: T
authors.initials: T
authors.lastname: Braun
authors.forename: F
authors.initials: F
authors.lastname: Chantraine
authors.forename: W
authors.initials: W
authors.lastname: Henrich
mesh_terms: D005260:Female; D006257:Head / Q000000981:diagnostic imaging*; D006801:Humans; D007746:Labor Presentation; D010502:Perineum / Q000000981:diagnostic imaging*; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000379:methods*