Klur, T.
Hasan, Istabrak
Ottersbach, K.
Stark, H.
Fichte, M.
Dirk, C.
Bourauel, C.
Article History
Received: 25 July 2017
Accepted: 14 May 2018
First Online: 30 May 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required. Informed consent was obtained from all individual participants included in the study.