The Identification of Mild Mitral Regurgitation: Its Separation from Innocent Murmurs by Intracardiac and Esophageal Phonocardiography Combined with Pharmacologic Response.

Excerpt Nine patients, aged 19 to 48, with apical systolic murmurs, without radiologic or electrocardiographic evidence of cardiac enlargement, were studied. An innocent murmur was frequently suspe...