Valle, Xavier
Alentorn-Geli, Eduard
Tol, Johannes L.
Hamilton, Bruce
Garrett, William E. Jr
Pruna, Ricard
Til, Lluís
Gutierrez, Josep Antoni
Alomar, Xavier
Balius, Ramón
Malliaropoulos, Nikos
Monllau, Joan Carles
Whiteley, Rodney
Witvrouw, Erik
Samuelsson, Kristian
Rodas, Gil
Article History
First Online: 23 November 2016
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this article.
: Xavier Valle, Eduard Alentorn-Geli, Johannes L. Tol, Bruce Hamilton, William E. Garrett Jr., Ricard Pruna, Lluís Til, Josep Antoni Gutierrez, Xavier Alomar, Ramón Balius, Nikos Malliaropoulos, Joan Carles Monllau, Rodney Whiteley, Erik Witvrouw, Kristian Samuelsson, and Gil Rodas declare that they have no conflicts of interest directly related to the content of this article.