PMC:7341464 / 5122-5137
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T77","span":{"begin":0,"end":15},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"N = 131 N = 106"}