Disclosure statement
All authors report no conflict of interest. All authors have read and approved the final version of the manuscript, and agree with the order of presentation of the authors.
Authors’ contributions
Conceptualization: G. Mjaess and T Roumeguere; analysis: G. Mjaess, F. Aoun, S. Albisinni, M Vanhaeverbeek and T Roumeguere; writing – original draft: G. Mjaess; writing – review and editing: F. Aoun, S. Albisinni, M Vanhaeverbeek and T. Roumeguère; supervision: T. Roumeguere.