PMC:7534206 / 559-606
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T6","span":{"begin":28,"end":29},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"irus disease 2019.\n\nMethods\nA retrospective stu"}
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":20,"end":27},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"irus disease 2019.\n\nMethods\nA retrospective stu"}