TY  - RPRT
TI  - Doppler echocardiography.
AU  - A S Pearlman
PY  - 1983
DO  - 10.1016/0167-5273(83)90066-9
UR  - https://pubmed.ncbi.nlm.nih.gov/6852995/
ID  - 6852995
ER  -