title: Algorithms for combining menstrual estimates of gestational age.
authors.forename: David J R
authors.initials: DJ
authors.lastname: Hutchon
mesh_terms: D000465:Algorithms; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D016216:Ultrasonography, Prenatal / Q000592:standards