1. The perfect instrument;Wirt;Instruments & Control Systems,1965
2. A study of physician variation in heart-sound interpretation;Dobrow;M. Ann. District of Columbia,1964
3. Auscultatory acumen in the general medical population;Butterworth;J.A.M.A.,1960
4. Variability in detection and interpretation of heart murmurs;Rushmer;Am. J. Dis. Child.,1952
5. Cardiovascular Sound in Health and Disease;McKusick,1958