PMC:7546139 / 18689-18718
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T178","span":{"begin":0,"end":29},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"What it is and when to use it"}