Krishnamoorthy, K M Letter to the Editor and Response: Percutaneous Closure of Atrial Septal Defects Under Transthoracic Echocardiography Without Fluoroscopy. [electronic resource] - Journal of interventional cardiology 08 2016 - 439-40 p. digital Publication Type: Journal Article ISSN: 1540-8183 Standard No.: 10.1111/joic.12305 doi