PMC:7172840 / 149-274
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":108,"end":115},"obj":"http://www.ebi.ac.uk/efo/EFO_0000876"}],"text":". In an unprecedented challenge to mankind, healthcare systems all over the world are subjected to the most extreme pressure "}