title: [Common atrium].
authors.affiliation: Department of Pediatric Cardiology, Heart Institute of Japan, Tokyo Women's Medical College.
authors.forename: I
authors.initials: I
authors.lastname: Park
authors.forename: K
authors.initials: K
authors.lastname: Momma
mesh_terms: D003937:Diagnosis, Differential; D004452:Echocardiography; D006325:Heart Atria / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D011859:Radiography