
PMC:7095246 / 25007-25037
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T275","span":{"begin":0,"end":30},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"• performed at one institution"}