Henssen, D. J. H. A.
Derks, B.
van Doorn, M.
Verhoogt, N. C.
Staats, P.
Vissers, K.
Van Cappellen van Walsum, A. M.
Article History
Received: 18 February 2019
Accepted: 22 July 2019
First Online: 5 August 2019
Competing Interests
: Professor Peter Staats is an employee of both National Spine and Pain Centers and ElectroCore. However, he was not involved in study design, obtaining the data or interpreting the results and no funding was received for conducting this research. None of the authors declare a conflict of interest in the conduction of this research.