PMC:7796344 / 581-813 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T7","span":{"begin":37,"end":45},"obj":"Sentence"},{"id":"T8","span":{"begin":46,"end":206},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"mong Umrah pilgrims in Saudi Arabia. Methods: A cross sectional survey was administered to pilgrims from February to April 2019 at the departure lounge at King Abdul Aziz International airport, Jeddah city. The questionnaire compris"}