Petzold, Friederike
Bachmann, Anette
Bergmann, Carsten
Helmchen, Udo
Halbritter, Jan
Article History
Received: 27 March 2019
Accepted: 14 August 2019
First Online: 2 September 2019
Ethics approval and consent to participate
: Not applicable.
: Written informed consent for publication was obtained from the index patient and all family members.
: The authors declare that they have no competing interests.