TY  - RPRT
TI  - Exercise echocardiography.
AU  - T Ryan
AU  - H Feigenbaum
PY  - 1992
DO  - 10.1016/0002-9149(92)90650-n
UR  - https://pubmed.ncbi.nlm.nih.gov/1605124/
ID  - 1605124
ER  -