- Correspondence to Professor Philippe Bouchard, Department of Periodontology, Service of Odontology, Rothschild Hospital, AP-HP; UFR of Odontology, University Paris Diderot Sorbonne Paris Cité, Paris 75006, France;
- Received June 16, 2017
- Revised October 13, 2017
- Accepted November 21, 2017
- First published December 6, 2017.
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