PMC:7269710 / 21899-22078 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T209","span":{"begin":0,"end":179},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Despite these measures, local clusters were subsequently identified in Singapore, with probable links to travellers from China before the measures to curb travel were implemented."}