PMC:7781500 / 6376-6412
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T58","span":{"begin":0,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" Almost always (more than 90%) "}