title: Fetal ultrasound biometry: 1. Head reference values.
authors.forename: D J
authors.initials: DJ
authors.lastname: Hutchon
mesh_terms: D001699:Biometry; D005260:Female; D006257:Head / Q000196:embryology*; D006801:Humans; D011247:Pregnancy; D012016:Reference Values; D016216:Ultrasonography, Prenatal