title: [Duplication of the left atrioventricular orifice (author's transl)].
mesh_terms: D001145:Arrhythmias, Cardiac / Q000150:complications; D006332:Cardiomegaly; D004562:Electrocardiography; D006325:Heart Atria / Q000002:abnormalities*; D006330:Heart Defects, Congenital / Q000150:complications / Q000175:diagnosis*; D006352:Heart Ventricles / Q000002:abnormalities; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000002:abnormalities; D011667:Pulmonary Veins / Q000002:abnormalities; D014262:Tricuspid Valve Insufficiency / Q000209:etiology
vernacular_title: Verdoppelung des linken atrionventrikulären Ostiums