Sanders, M. http://orcid.org/0000-0002-9560-7491
Servaas, S. http://orcid.org/0000-0002-6934-1781
Slagt, C. http://orcid.org/0000-0003-1432-8587
Article History
Received: 11 March 2019
Accepted: 29 May 2019
First Online: 7 June 2019
Compliance with ethical standards
:
: CS contacted the manufacturer of the Aesculon<sup>®</sup> and ICON<sup>®</sup> monitor (Osypka Medical GmbH, Berlin, Germany) for identification of additional studies. Besides this, the authors declare that they have no conflict of interest.