PMC:7210464 / 49761-50011 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T423","span":{"begin":0,"end":250},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Regarding between-city transmissions, we consider the mediating effects of distance, difference in population density, and difference in GDP per capita since cities that are similar in density or economic development level may be more closely linked."}

{"project":"LitCovid-PubTator","denotations":[{"id":"284","span":{"begin":137,"end":140},"obj":"Chemical"}],"attributes":[{"id":"A284","pred":"tao:has_database_id","subj":"284","obj":"MESH:D006153"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"Regarding between-city transmissions, we consider the mediating effects of distance, difference in population density, and difference in GDP per capita since cities that are similar in density or economic development level may be more closely linked."}