EFFLER, D B Pitfalls in the surgical closure of atrial septal defect. Based on experience with one hundred and fifteen cases. [electronic resource] - Cleveland Clinic quarterly Jul 1961 - 166-75 p. digital Publication Type: Journal Article ISSN: 0009-8787 Standard No.: 10.3949/ccjm.28.3.166 doi Subjects--Topical Terms: Cardiac Surgical ProceduresHeartHeart Septal DefectsHeart Septal Defects, AtrialHeart Septum--abnormalitiesHumansThoracic Surgery--complications