PMC:7796344 / 1970-2031 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796344","sourcedb":"PMC","sourceid":"7796344","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796344","text":"wore a face mask (n = 351, 34.6%) in crowded areas, while 63.","tracks":[]}