PMC:7796344 / 93-220 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":2,"end":10},"obj":"Sentence"},{"id":"T3","span":{"begin":11,"end":22},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"\n\nAbstract\nBackground: Annually, approximately 10 million pilgrims travel to the Kingdom of Saudi Arabia (KSA) for Umrah from m"}