
PMC:7441777 / 8836-8845
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T64","span":{"begin":1,"end":7},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"\n2.1.1. "}