On Apparent Reduplication of the Second Sound in Mitral Stenosis

have given rise to more controversy and are more difficult of explanation than anomalies in reduplication of the second sound. One of the most puzzling of those, and one which has given rise to most controversy, is a reduplication of the second sound audible at the apex, while a single second sound may be audible at the base at the aortic and pulmonary areas. That this condition is fairly common in mitral stenosis there