- Correspondence to : Clare Béchet, Pharmacie des Hôpitaux du Nord Vaudois et de la Broye, Entremonts 11, Yverdon-les-Bains 1400, Switzerland;
- Received September 17, 2014
- Revised January 14, 2015
- Accepted January 20, 2015
- First published February 16, 2015.
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