PMC:7210464 / 388-669 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":60,"end":72},"obj":"http://purl.obolibrary.org/obo/OBI_0000968"},{"id":"T2","span":{"begin":229,"end":234},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"},{"id":"T3","span":{"begin":258,"end":263},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"}],"text":"munities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent quarantines, city lockdowns, and local public health measures imposed in late January significantly decreased the virus transmission rate. The virus spread was contai"}

{"project":"LitCovid-sentences","denotations":[{"id":"T5","span":{"begin":10,"end":104},"obj":"Sentence"},{"id":"T6","span":{"begin":105,"end":253},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"munities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent quarantines, city lockdowns, and local public health measures imposed in late January significantly decreased the virus transmission rate. The virus spread was contai"}