PMC:7146662 / 7239-7267
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T51","span":{"begin":0,"end":28},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Study conception and design:"}