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PubMed
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History
- Published online January 11, 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
- Faculty of Medicine and Health Sciences, Sana'a University, PO Box 13078, Sana'a, Yemen. Tel. +967 (1) 381414. E-mail: abdullahalsamawi@yahoo.com