PMC:7247521 / 436-462
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":3,"end":11},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":".\n\nAbstract\nQingfei Paidu "}