Author contributions
All authors (1) made substantial contributions to the conception and design of the work (FK, SB, UJ, JFA), or the acquisition, analysis or interpretation of data (FK, SB, JFA); (2) drafted the article (FK) or substantively revised it (SB, AT, GB, UJ, BG, JFA); (3) have approved the submitted version (and version substantially edited by journal staff that involves the author´s contribution to the study); and (4) have agreed to be personally accountable for the own contributions and for ensuring that questions related to the accuracy or integrity of any part of the work, even ones in which the authors were not personally involved, are appropriately investigated, resolved and documented in the literature.