TY  - RPRT
TI  - Echocardiographic assessment of long axis function: a simple solution to a complex problem?
AU  - I A Simpson
PY  - 1997
DO  - 10.1136/hrt.78.3.211
UR  - https://pubmed.ncbi.nlm.nih.gov/9391275/
ID  - 9391275
ER  -