1. R.T.H. Laënnec 1781–1826: his life and work: a bicentenary appreciation;Sakula;Thorax,1981
2. Cardiac auscultation: a re-emphasis;Cochran;Am Heart J,1979
3. Manipulating cardiac murmurs;Stapleton;Chest,1982
4. Dynamic cardiac auscultation and phonocardiography: a graphic guide;Delman,1979
5. Effect of vasoactive drugs and maneuvers on heart murmurs;Ronan,1975