Article Info AuthorsDr.Ali Ahmed ThebanDr.Sami Saeed Saeed AlMudarraDr.Ahmad Mohammad Al-AsmariVolume: 25Year: 2018Month: JanuaryIssue: 1-4Reference: Theban A., AlMudarra S., Al-Asmari A., .Saudi Epidemiology Bulletin. 2018;25(1-4):.