PMC:7179483 / 6813-6833 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T33","span":{"begin":0,"end":14},"obj":"Sentence"},{"id":"T34","span":{"begin":15,"end":20},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Acknowledgment\nNone."}