Wilken, Meike
Oh, Jun
Pinnschmidt, Hans O.
Singer, Dominique
Blohm, Martin E. http://orcid.org/0000-0003-3873-0634
Article History
Received: 21 May 2019
Revised: 8 October 2019
Accepted: 29 October 2019
First Online: 14 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the local ethical board (“Ethikkommission der Ärztekammer Hamburg”). All procedures performed in this study 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. Informed parental consent was obtained from all individual participants included in the study.