PMC:7796344 / 68-228 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":27,"end":35},"obj":"Sentence"},{"id":"T3","span":{"begin":36,"end":47},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" Saudi Arabia, 1440H-2019\n\nAbstract\nBackground: Annually, approximately 10 million pilgrims travel to the Kingdom of Saudi Arabia (KSA) for Umrah from more than"}