Heyland, Mark
Checa, Sara
Kendoff, Daniel
Duda, Georg N.
Article History
Received: 15 June 2018
Accepted: 19 November 2018
First Online: 24 January 2019
Competing Interests
: D.K. acted as a paid speaker for the Waldemar Link GmbH & Co. K.G., Hamburg, Germany, which manufactures the SP-CL implant. This study received research support from the company Waldemar Link GmbH & Co. K.G., Hamburg, Germany, which manufactures the SP-CL implant. All authors declare that there exists no further conflict of interest.