PMC:7306567 / 4269-4465 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T28","span":{"begin":9,"end":33},"obj":"Sentence"},{"id":"T29","span":{"begin":34,"end":133},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"tudies.\n\nParticipants and methods\nThe expert panel is comprised of 29 participants from seven European countries, the USA and Taiwan. To ensure heterogenicity, participants were selected from vari"}