[Are old methods always outmoded?].
D000790:Angiocardiography; D006328:Cardiac Catheterization; D006326:Heart Auscultation; D006330:Heart Defects, Congenital; D006801:Humans; D010701:Phonocardiography
ANGIOCARDIOGRAPHY; HEART AUSCULTATION; HEART CATHETERIZATION; HEART DEFECTS, CONGENITAL; PHONOCARDIOGRAPHY