title: The structure of the aortic root.
authors.forename: R H
authors.initials: RH
authors.lastname: Anderson
mesh_terms: D001021:Aortic Valve / Q000033:anatomy & histology*; D006321:Heart / Q000033:anatomy & histology / Q000196:embryology; D006801:Humans; D011664:Pulmonary Valve / Q000033:anatomy & histology