PMC:7796344 / 21000-21118 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"115","span":{"begin":66,"end":74},"obj":"Disease"}],"attributes":[{"id":"A115","pred":"tao:has_database_id","subj":"115","obj":"MESH:C000657245"}],"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":" Arabia (56%) and the USA (42%) [19,24,25]. Since the outbreak of COVID-19 [27,28], the use of face masks has become u"}