Article Information
PubMed
Published By
Online ISSN
History
- Published online January 8, 2021.
Copyright & Usage
Copyright: © Saudi Medical Journal This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Author Information
- Department of Epidemiology, High Institute of Public Health, Alexandria, Egypt. Tel./Fax. +1 (201) 944 4239. E-mail: bbtawfik{at}hotmail.com
- Department of Epidemiology, High Institute of Public Health, Alexandria, Egypt.
- Department of Epidemiology, High Institute of Public Health, Alexandria, Egypt.
- Department of Pediatrics, Faculty of Medicine, Alexandria University, Alexandria, Egypt.