PMC:7796344 / 3471-3741 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T28","span":{"begin":57,"end":190},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ea to visit the holy cities of Makkah and Madinah [1,2].\nUmrah is a spiritual practice that is not obligatory and has no fixed date or time to be performed so may be seasonally affected [3]. Similarly to the Hajj and other mass gatherings, the Umrah entails global movem"}