PMC:7795804 / 7235-7294
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T49","span":{"begin":0,"end":59},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We report both the number and proportion of missing values."}