PMC:7796344 / 70-284 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":25,"end":33},"obj":"Sentence"},{"id":"T3","span":{"begin":34,"end":45},"obj":"Sentence"},{"id":"T4","span":{"begin":46,"end":173},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"audi Arabia, 1440H-2019\n\nAbstract\nBackground: Annually, approximately 10 million pilgrims travel to the Kingdom of Saudi Arabia (KSA) for Umrah from more than 180 countries. This event presents major challenges for"}