Laukamp, Kai Roman http://orcid.org/0000-0002-5600-5914
Pennig, Lenhard
Thiele, Frank
Reimer, Robert
Görtz, Lukas
Shakirin, Georgy
Zopfs, David
Timmer, Marco
Perkuhn, Michael
Borggrefe, Jan
Article History
Received: 16 September 2019
Accepted: 27 January 2020
First Online: 14 February 2020
Conflict of interest
: G. Shakirin, F. Thiele, M. Perkuhn are Philips employees. J. Borggrefe received an honorarium from Philips for scientific lectures. K.R. Laukamp, L. Pennig, R. Reimer, L. Goertz, D. Zopfs and M. Timmer declare that they have no competing interests.