title: A Heart With Quadruple Atria: Does it Exist?
authors.affiliation: From Department of Congenital Cardiac Defects (M.K., M.K., M.K., P.H.) and Department of Radiology (I.M.), Cardinal Stefan Wyszyński Institute of Cardiology, Warsaw, Poland. malgorz.kowalczyk@gmail.com.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Kowalczyk
authors.affiliation: From Department of Congenital Cardiac Defects (M.K., M.K., M.K., P.H.) and Department of Radiology (I.M.), Cardinal Stefan Wyszyński Institute of Cardiology, Warsaw, Poland.
authors.forename: Mirosław
authors.initials: M
authors.lastname: Kowalski
authors.affiliation: From Department of Congenital Cardiac Defects (M.K., M.K., M.K., P.H.) and Department of Radiology (I.M.), Cardinal Stefan Wyszyński Institute of Cardiology, Warsaw, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Konka
authors.affiliation: From Department of Congenital Cardiac Defects (M.K., M.K., M.K., P.H.) and Department of Radiology (I.M.), Cardinal Stefan Wyszyński Institute of Cardiology, Warsaw, Poland.
authors.forename: Ilona
authors.initials: I
authors.lastname: Michałowska
authors.affiliation: From Department of Congenital Cardiac Defects (M.K., M.K., M.K., P.H.) and Department of Radiology (I.M.), Cardinal Stefan Wyszyński Institute of Cardiology, Warsaw, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Hoffman
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology; D006332:Cardiomegaly / Q000209:etiology; D005260:Female; D006325:Heart Atria / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000196:embryology; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography