Kulnig, Johannes
Füreder, Lisa
Harrison, Nicole
Frass, Michael
Robak, Oliver http://orcid.org/0000-0002-3238-194X
Funding for this research was provided by:
Medical University of Vienna
Article History
Received: 12 December 2017
Revised: 15 March 2018
Accepted: 16 March 2018
First Online: 5 April 2018
Compliance with ethical statements
: The study was approved by the local Ethical Committee (No. 1805/2015, date of approval 10/2015). 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.
: The authors have no conflicts of interest relevant to this article to disclose. MF received royalties for the development of the Combitube, a predecessor of the EasyTube.