Article History
Received: 22 August 2019
Accepted: 20 November 2019
First Online: 26 November 2019
Compliance with ethical standards
:
: SZ has received consultancy fees and travel reimbursement from Drägerwerke AG & Co. KGaA in the past on projects unrelated to the investigated device. This study did not receive any support from the manufacturer other than provision of the device and disposable materials free of charge.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.