PMC:7796344 / 534-659 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T7","span":{"begin":84,"end":92},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ing vaccination history and health education, among Umrah pilgrims in Saudi Arabia. Methods: A cross sectional survey was adm"}