Received: 4 June 2020
Accepted: 17 November 2020
First Online: 28 November 2020
Ethics approval and consent to participate
: The study has been performed in accordance with the ethical standards in the 1964 Declaration of Helsinki. The study was approved by Landesärztekammer Badenwürttemberg (committee’s reference number F-2014-027). All subjects gave informed verbal consent to participate in the study, which was documented before collecting the data and approved by the Landesärztekammer in that way. Because the study included a retrospective analysis of prospective collected data from the routine diagnostic and therapeutic procedure in our clinic a verbal consent was exapted.
: All patients consented verbal to publish personal data in an anonymized form.
: The authors declare that they have no competing interests.