PMC:7272971 / 770-920 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T11","span":{"begin":87,"end":136},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"terature search in this area was conducted on 15 April 2020 using the Scopus database. In total, 287 results were returned and reviewed. There is prel"}