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nih.gov
pubmed.ncbi.nlm.nih.gov
KORNEL L (1958). "A case of calcified ventricular aneurysm with progressive heart block; observations on the effect of ethylnorepinephrine". Cardiologia. 32 (2): 101–9. doi:10.1159/000165806. PMID13500349.
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patents.google.com
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