@misc{indiciaeda4eb005d534, title = {Complete heart block developing during aortic valvuloplasty.}, author = {R H Plack and J K Porterfield and J A Brinker}, year = {1989}, doi = {10.1378/chest.96.5.1201}, url = {https://pubmed.ncbi.nlm.nih.gov/2805853/}, note = {Source identifier: 2805853} }