Kiessling, Maren C.
Milz, Stefan
Frank, Hans-Georg
Korbel, RĂ¼diger
Schmitz, Christoph
Article History
Received: 11 September 2014
Accepted: 7 January 2015
First Online: 6 February 2015
Competing interests
: No funding/financial support by third parties was obtained and no benefit was received or will be received directly or indirectly from a commercial party related to the performance of this study. C.S. serves as paid consultant for and receives benefits from Electro Medical Systems. However, C.S. has not received any honoraria or consultancy fee in the context of this study. M.C.K. S.M., H.G.F. and R.K. declare no competing financial interests.