PMC:7035340 / 10690-10753 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T62","span":{"begin":0,"end":19},"obj":"Sentence"},{"id":"T63","span":{"begin":20,"end":63},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Competing interests\nThe authors declare no competing interests."}