Calvert, Nicholas D.
Smith, Anne
Ackland, Tim
Kuster, Markus S.
Ebert, Jay
Article History
Received: 3 December 2019
First Online: 4 March 2020
Compliance with ethical standards
:
: Markus S. Kuster has received royalties from Zimmer and Springer publishing. Nicholas D. Calvert, Anne Smith, Tim Ackland, Markus S Kuster, and Jay Ebert declare that they have no conflict of interest.