Funding for this research was provided by:
B. Braun Foundation (BBST-D-18-00064)
National Institute of Neurological Disorders and Stroke of the NIH (P01 NS097197)
Received: 12 May 2019
Accepted: 16 August 2019
First Online: 12 November 2019
Ethics approval and consent to participate
: This is a case series with informed consent by the patients or their parents, respectively. A separate ethics approval has not been considered necessary by the ethics committee of the University of Ulm.
: All patients or parents, respectively, gave their consent for publication.
: B.A. Minassian holds patents for diagnostic testing of the following genes: <i>EPM2A, EPM2B, MECP2</i>, and <i>VMA21</i>; and has received license fee payments/royalty payments from patents for diagnostic testing of the following genes: <i>EPM2A, EPM2B, MECP2</i>, and <i>VMA21</i>.The other authors declare that they have no competing interests.