PMC:7499623 / 6173-6184
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T58","span":{"begin":0,"end":11},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Question 4:"}