- Correspondence to Dr Esther Titos, CIBERehd, Barcelona, Spain, ; Dr Joan Clària, Department of Biochemistry and Molecular Genetics, Hospital Clínic, Villarroel 170, Barcelona 08036, Spain;
- Received June 25, 2012
- Revised February 7, 2013
- Accepted February 8, 2013
- First published March 14, 2013.
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