@misc{indiciae684743b16197, title = {Intractable heart failure.}, author = {S PROGER and J J O'CONNOR}, year = {1950}, doi = {10.7326/0003-4819-33-6-1349}, url = {https://pubmed.ncbi.nlm.nih.gov/14790516/}, note = {Source identifier: 14790516} }