[Change of the first sound in atrial septal defects].
D000293:Adolescent; D000328:Adult; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002648:Child; D006326:Heart Auscultation; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D010701:Phonocardiography
Zmĕna privní ozvy u defektu prepázky siní.