PMC:7216275 / 44878-44993 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T379","span":{"begin":0,"end":115},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Our study was limited to two provinces because as of6 March, 2020, these two provinces were still under quarantine."}