TY  - GEN
AU  - O'Rourke,R A
TI  - Extra heart sounds--what do they mean?
SN  - 0025-7583
PY  - 1971///1030
KW  - Diagnosis, Differential
KW  - Heart Auscultation
KW  - Heart Diseases
KW  - diagnosis
N1  - Publication Type: Journal Article
ER  -