PMC:7543680 / 23904-23976
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T217","span":{"begin":0,"end":72},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Differential exposure refers to different living and working conditions."}