Huttmann, Sophie Emilia
Wilms, Katharina
Hamm, Christine
Magnet, Friederike Sophie
Windisch, Wolfram
Storre, Jan Hendrik
Article History
Received: 18 November 2016
Accepted: 13 February 2017
First Online: 3 March 2017
Compliance with Ethical Standards
:
: The study group received an Open Research Grant from Weinmann Geräte für Medizin GmbH and Co. KG and VIVISOL Deutschland GmbH. All authors state that none of the discussed issues in the submitted manuscript was dependent on or influenced support and funding.