There were errors in the Funding section. The correct funding information is as follows: This work was partially supported by the Spanish MICINN project MultiScales (DPI2011-28112-C04-03), the CSIC intramural project BioREDES (PIE-201170E018) and European FP7 project KBBE-2007-2-3-01 CAFE . One of the authors thanks partial support provided by the ”Salvador de Madariaga” Mobility Programme(2011-2012). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Footnotes
Competing Interests: No competing interests declared.