PubMed:33419461 / 4075-4243 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T25","span":{"begin":0,"end":168},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Individuals (one per household) receive information and study material by mail with instructions on how to produce a saliva sample and how to return the sample by mail."}