TY  - RPRT
TI  - Echocardiography: an overview.
AU  - H Feigenbaum
PY  - 1983
DO  - 10.1016/s0735-1097(83)80023-0
UR  - https://pubmed.ncbi.nlm.nih.gov/6826935/
ID  - 6826935
ER  -