@misc{indiciae684b8877e730, title = {Analysis of left ventricular function by atrial pacing.}, author = {J O Parker and F Khaja and R B Case}, year = {1971}, doi = {10.1161/01.cir.43.2.241}, url = {https://pubmed.ncbi.nlm.nih.gov/4925023/}, note = {Source identifier: 4925023} }