resumo
- Funding: The European Regional Development Fund - Operational Competitiveness Programme (FEDER-POFC-COMPETE) and the Portuguese Foundation for Science and Technology supported this study (PEst-C/BIA/UI4050/2011 and PTDC/AAC-AMB/113746/2009) and S. Duarte (SFRH/BPD/47574/2008).