PMC:7195088 / 27733-27841 JSONTXT

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{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T368","span":{"begin":16,"end":34},"obj":"Chemical"}],"attributes":[{"id":"A368","pred":"chebi_id","subj":"T368","obj":"http://purl.obolibrary.org/obo/CHEBI_5801"}],"text":"• Comparison of hydroxychloroquine vs. placebo for the prevention of COVID-19 in healthcare workers at risk."}

{"project":"LitCovid-sentences","denotations":[{"id":"T207","span":{"begin":0,"end":108},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"• Comparison of hydroxychloroquine vs. placebo for the prevention of COVID-19 in healthcare workers at risk."}