PMC:7796344 / 1908-2049 JSONTXT

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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796344","sourcedb":"PMC","sourceid":"7796344","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796344","text":" Umrah in 2019. In contrast, similar numbers said they always wore a face mask (n = 351, 34.6%) in crowded areas, while 63.2% reported lack o","tracks":[]}