PMC:7796344 / 21-161 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":74,"end":82},"obj":"Sentence"},{"id":"T3","span":{"begin":83,"end":94},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ative Measures Practice among Umrah Pilgrims in Saudi Arabia, 1440H-2019\n\nAbstract\nBackground: Annually, approximately 10 million pilgrims t"}