Krishnamoorthy, KMSasikumar, DBijulal, S2017-03-102017-03-10201629 ,4;439-440https://dspace.sctimst.ac.in/handle/123456789/10201Cardiovascular System & CardiologyPercutaneous Closure of Atrial Septal Defects Under Transthoracic Echocardiography Without Fluoroscopy Response