PMC:7436876 / 2278-2431 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T19","span":{"begin":0,"end":21},"obj":"Sentence"},{"id":"T20","span":{"begin":22,"end":69},"obj":"Sentence"},{"id":"T21","span":{"begin":70,"end":153},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Author's contribution\nMFHM and KA contributed equally to this letter. KA and MFHM wrote the initial and the final version and approved it for submission."}