PMC:7796344 / 748-979 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796344","sourcedb":"PMC","sourceid":"7796344","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796344","text":"ziz International airport, Jeddah city. The questionnaire comprised questions on sociodemographic information (age, gender, marital status, level of education, history of vaccinations and chronic illnesses), whether the pilgrim had","tracks":[]}