TY  - RPRT
TI  - "Zero reference" during cardiac catheterization.
AU  - J D Waldman
AU  - T S Loeffler
AU  - S W Turner
AU  - S J Pappelbaum
PY  - 1978
UR  - https://pubmed.ncbi.nlm.nih.gov/667925/
ID  - 667925
ER  -