Article History
Received: 31 January 2019
Accepted: 26 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: We received permission by the Federal Statistical Office of Germany (Destatis, Wiesbaden) to publish this data within our manuscript. Thus, no further institutional review board approval was required.
: Not applicable.
: TW: consultancy for B. Braun, Germany. HW: Consultancy and lectures for B. Braun, Germany and Sintetica. All other authors: nothing to declare.