TY  - RPRT
TI  - Should a fixed external reference system be used to analyze left ventricular wall motion?
AU  - P D Clayton
AU  - G M Jeppson
AU  - S C Klausner
PY  - 1982
DO  - 10.1161/01.cir.65.7.1518
UR  - https://pubmed.ncbi.nlm.nih.gov/7074810/
ID  - 7074810
ER  -