PMC:7544943 / 29312-29318
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T253","span":{"begin":0,"end":6},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"3.6.1."}