Article Info Authors Dr.Eman Elsayed Abd-EllatifDr.Sami Saeed Saeed AlMudarraDr.Asmma Awwad M. AlQusibriMrs.Lujain AlassafMrs.Lamis AlGhamdiDr.Alwaleed Abdulhameed Alharbi Omar Albeladi,La-mia Alhomidan Volume: 26 Year: 2019 Month: January Issue: 1-4 Pages: Reference: Abd-Ellatif E., AlMudarra S., AlQusibri A., Alassaf L., AlGhamdi L., Alharbi A.,Omar Albeladi,La-mia Alhomidan .Saudi Epidemiology Bulletin. 2019;26(1-4):.