PMC:7435837 / 21442-21548
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T217","span":{"begin":21,"end":22},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T218","span":{"begin":29,"end":30},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" this section are in a sense a crude method of applying highly sophisticated materials and techniques that"}