共 12 条
[2]
Butterworth J.S., 1960, CARDIAC AUSCULTATION
[3]
CRAFOORD C, 1955, H FORD HOSP INT S CA, P202
[5]
FAYEN AW, 1959, AM J CLIN PATHOL, V32, P552
[10]
STRAUS R, 1945, ARCH PATHOL, V39, P74