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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
- PO Box 5076, Riyadh 11533, Kingdom of Saudi Arabia. Tel. +966 56482435. Fax. +966 (1) 4114590. E-mail abbaiya@yahoo.com
- Department of Epidemiology and Statistics, University College Hospital, Ibadan, Nigeria.
