Article Info AuthorsDr.Sultan Khalid AldahashDr.Shady Abdulrahman KamelDr.Asmma Awwad M. AlQusibriVolume: 25Year: 2018Month: JanuaryIssue: 1-4Reference: Aldahash S., Kamel S., AlQusibri A., .Saudi Epidemiology Bulletin. 2018;25(1-4):.