PMC:7340764 / 53337-53398 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T374","span":{"begin":0,"end":33},"obj":"Sentence"},{"id":"T375","span":{"begin":35,"end":55},"obj":"Sentence"},{"id":"T376","span":{"begin":56,"end":61},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Compliance with Ethical Standards\n\nConflict of Interest\nNone."}