PMC:7781502 / 6518-6542
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T67","span":{"begin":0,"end":24},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"15 Switzerland 796 15"}