PMC:7780429 / 5715-5876 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T42","span":{"begin":0,"end":161},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Using a self-administered questionnaire addressed to health workers in our health area, we carried out a cross-sectional study during the first week of May 2020."}