PMC:7341464 / 1167-1237 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T9","span":{"begin":42,"end":45},"obj":"http://purl.obolibrary.org/obo/CLO_0001562"},{"id":"T10","span":{"begin":42,"end":45},"obj":"http://purl.obolibrary.org/obo/CLO_0001563"}],"text":"Surveys were performed at baseline and at a 2-weekly follow-up period."}

{"project":"LitCovid-sentences","denotations":[{"id":"T10","span":{"begin":0,"end":70},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Surveys were performed at baseline and at a 2-weekly follow-up period."}