Funding for this research was provided by:
Bundesministerium für Wirtschaft und Energie (03EFHBE093, 03EFHBE093, 03EFHBE093)
Text and Data Mining valid from 2018-05-22
Received: 13 March 2018
Revised: 5 April 2018
Accepted: 11 April 2018
First Online: 22 May 2018
Compliance with ethical standards
: The scientific guarantor of this publication is Dr. Paul Jahnke.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: Patent applications for the 3D printing method were filed by Dr. Jahnke and PD Dr. Scheel: DE202015104282U1, EP000003135199A1, US020170042501A1.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • prospective• observational• performed at one institution