PMC:7444865 / 637-761
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":0,"end":124},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Findings were used to develop and refine measures of conditions salient to the health of urban residents across the country."}