PMC:7143804 / 967-1055 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T9","span":{"begin":61,"end":62},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" to be done.\n\n1. Introduction\nDiseases were and can still be a major problem in the worl"}

{"project":"LitCovid-sentences","denotations":[{"id":"T9","span":{"begin":14,"end":16},"obj":"Sentence"},{"id":"T10","span":{"begin":17,"end":29},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" to be done.\n\n1. Introduction\nDiseases were and can still be a major problem in the worl"}