- Correspondence to Roi Arias Rico, Department of Pharmacy, Servicio de Farmacia-Hospital Universitario Doctor Negrin, Barranco de la Ballena, s/n, Las Palmas Gran Canaria 35006, Gran Canaria, Spain;
- Received September 3, 2012
- Revised November 26, 2012
- Accepted January 18, 2013
- First published February 21, 2013.
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