PMC:7116472 / 6507-6649 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T45","span":{"begin":14,"end":106},"obj":"Sentence"},{"id":"T46","span":{"begin":108,"end":123},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ent pathogen. In this activation, site training emphasised the importance of only recruiting proven cases.\n\nData collection\nDemographic, clini"}