title: Nonoperative closure of atrial septal defects.
mesh_terms: D000818:Animals; D006328:Cardiac Catheterization / Q000295:instrumentation*; D004285:Dogs; D006344:Heart Septal Defects, Atrial / Q000628:therapy*; D013677:Medical Laboratory Science / Q000295:instrumentation; D008722:Methods; D019736:Prostheses and Implants