TY  - RPRT
TI  - High frequency phonocardiography.
AU  - A A LUISADA
AU  - G DI BARTOLO
PY  - 1961
DO  - 10.1016/0002-9149(61)90178-3
UR  - https://pubmed.ncbi.nlm.nih.gov/13764168/
ID  - 13764168
ER  -