Text and Data Mining valid from 2020-03-09
Received: 14 January 2020
Accepted: 29 February 2020
First Online: 9 March 2020
Ethics approval and consent to participate
: The patient signed an informed consent. This study was approved by the local ethics council of the Hamburg chamber for physicians and was performed in accordance with the Helsinki declaration of 1975.
: The patient signed an informed consent.
: The authors declare that they have no competing interests.