Author contributions
The authors are justifiably credited with authorship, according to the authorship criteria. In detail: concept and design: MA, DI; data acquisition and research execution: AL, SD, PA, JM, JN, D B-G; analysis and interpretation: AL, SD, PA, MA, DI, JM, JN, DB-G; manuscript preparation: AL, SD, PA, MA, DI, JM, JN, DB-G.