PMC:7551987 / 19936-20055 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T135","span":{"begin":27,"end":109},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"d symptomatic individuals. Note the long tail of the curve corresponding to contamination by the environment. The envir"}