Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01GP1622A)
Received: 6 March 2019
Accepted: 23 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: The study has been approved by the Ethics Committee of the Medical Faculty of the LMU Munich (Number: 575–16). Written informed consent was obtained from the participants for publication of their cases and any accompanying Tables. A copy of the written consent is available for review by the editor of this journal.
: Participants declared written informed consent for using data assessed in publications.
: JK and OF declare that they have no competing interests. JR is a member of the Editorial Board of BMC Medical Ethics.