title: Letter: Atrial septal defect and myxomatous mitral-valve prolapse.
mesh_terms: D003937:Diagnosis, Differential; D006326:Heart Auscultation; D006338:Heart Neoplasms / Q000150:complications*; D006344:Heart Septal Defects, Atrial / Q000150:complications*; D006801:Humans; D008943:Mitral Valve / Q000473:pathology; D008944:Mitral Valve Insufficiency / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D009232:Myxoma / Q000150:complications*; D013577:Syndrome