PMC:7795931 / 11939-11949 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T65","span":{"begin":0,"end":2},"obj":"Sentence"},{"id":"T66","span":{"begin":3,"end":10},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2. Methods"}