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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
- Department of Periodontics, New York University, College of Dentistry, 345 East 24th Street, New York, NY 10010-4086, United States of America. Tel. +1 (973) 5731713. Fax. +1 (201) 4356022. E-mail: khalidalmas{at}yahoo.com
- USC Program, Armed Forces Hospital, Riyadh, Kingdom of Saudi Arabia.
- USC Program, Armed Forces Hospital, Riyadh, Kingdom of Saudi Arabia.
- Faculty of Dentistry, University of Bergen, Norway.