PMC:7333997 / 16284-16394 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T148","span":{"begin":0,"end":110},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"For 50 analized capital cities, 20% do not record PM2.5 data, corresponding to capitals from the countries of:"}