_:naa6e4b67338a47b9b934d10e7fc9a8c0xb1
<http://schema.org/keywords>
"Cardiology,Cardiac Surgery,Angiology,Blood Transfusion Medicine,Internal Medicine,Medicine/Public Health,general"
<https://bmccardiovascdisord.biomedcentral.com/articles/10.1186/s12872-020-01835-0/tables/1>