title: Choosing the correct equation for computing the head circumference from two diameters: the effect of head shape.
mesh_terms: D002508:Cephalometry / Q000379:methods*; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D006801:Humans; D008954:Models, Biological; D011247:Pregnancy