PMC:7796344 / 3528-3661 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T28","span":{"begin":0,"end":133},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Umrah is a spiritual practice that is not obligatory and has no fixed date or time to be performed so may be seasonally affected [3]."}