title: Hypoechoic rim of fetal heart.
authors.forename: P
authors.initials: P
authors.lastname: Jeanty
mesh_terms: D005260:Female; D005318:Fetal Heart / Q000000981:diagnostic imaging*; D005865:Gestational Age; D006346:Heart Septum / Q000000981:diagnostic imaging; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal