TY  - RPRT
TI  - Exercise echocardiography: ready, willing and able.
AU  - W F Armstrong
PY  - 1988
DO  - 10.1016/0735-1097(88)90305-1
UR  - https://pubmed.ncbi.nlm.nih.gov/3367009/
ID  - 3367009
ER  -