**4. Conclusions**

The main conclusions can be summarised as follows:


**Author Contributions:** Conceptualisation, A.M.B. and M.d.l.N.G.; Methodology, A.M.B. and M.d.l.N.G.; Formal Analysis, A.M.B. and M.d.l.N.G.; Investigation, A.M.B.; Resources, A.M.B.; Data Curation, A.M.B. and M.G.A.; Writing–Original Draft Preparation, A.M.B. and M.G.A.; Writing–Review and Editing, M.G.A. and J.C.G.; Supervision, J.C.G.; Project Administration, J.C.G.; Funding Acquisition, A.M.B. and J.C.G.

**Funding:** This research was funded by the Spanish Ministry of Economy, Industry and Competitiveness (No. BIA 2016 78742-C2-2-R). It was also supported by a university-lecturer training gran<sup>t</sup> (formación de profesorado universitario, FPU) provided by the Spanish Ministry of Science and Innovation to Angela Moreno Bazan (No. FPU14-06362).

**Conflicts of Interest:** The authors declare no conflict of interest.
