PMC:7120970 / 3991-4083 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T28","span":{"begin":0,"end":92},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This letter was published on January 30, 2020, and updated on February 6, 2020, at NEJM.org."}