PMC:7210464 / 331-506 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":117,"end":129},"obj":"http://purl.obolibrary.org/obo/OBI_0000968"}],"text":"th measures that encourage social distancing in local communities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent qua"}

{"project":"LitCovid-sentences","denotations":[{"id":"T5","span":{"begin":67,"end":161},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"th measures that encourage social distancing in local communities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent qua"}