TY  - RPRT
TI  - Hybrid exercise echocardiograph.
AU  - S N Berberich
AU  - J R Zager
PY  - 1981
DO  - 10.1177/000331978103200101
UR  - https://pubmed.ncbi.nlm.nih.gov/7469123/
ID  - 7469123
ER  -