TY  - RPRT
TI  - [Evaluation of left ventricular function by external methods. Comparative study of systolic intervals and apexcardiography].
AU  - C M Brandt
AU  - M Rauscher
AU  - P Arnold
AU  - J L Fincker
PY  - 1976
UR  - https://pubmed.ncbi.nlm.nih.gov/137698/
ID  - 137698
ER  -