PMC:7126544 / 1646-1761 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T14","span":{"begin":72,"end":73},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"However, it is clear that finding an effective antiviral and developing a vaccine are still significant challenges."}

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T6","span":{"begin":47,"end":56},"obj":"Chemical"}],"attributes":[{"id":"A6","pred":"chebi_id","subj":"T6","obj":"http://purl.obolibrary.org/obo/CHEBI_22587"}],"text":"However, it is clear that finding an effective antiviral and developing a vaccine are still significant challenges."}

{"project":"LitCovid-sentences","denotations":[{"id":"T13","span":{"begin":0,"end":115},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"However, it is clear that finding an effective antiviral and developing a vaccine are still significant challenges."}