title: All defects of the atrial septum are not created equally.
authors.forename: Robert
authors.initials: R
authors.lastname: Sommer
authors.forename: William
authors.initials: W
authors.lastname: Gray
mesh_terms: D006328:Cardiac Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D004867:Equipment Design; D019317:Evidence-Based Medicine; D006344:Heart Septal Defects, Atrial / Q000473:pathology / Q000628:therapy*; D006801:Humans; D018579:Patient Selection; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome