- Correspondence to Dr David Hupin, CHU Saint-Etienne, Hôpital Nord, Service de Physiologie Clinique et de l'Exercice, Centre VISAS, Bâtiment A-3è étage, 42055 Saint-Etienne, Cedex 2, France;
- Accepted June 18, 2015
- First published August 3, 2015.
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