Text and Data Mining valid from 2019-08-09
Received: 12 December 2018
Accepted: 29 July 2019
First Online: 9 August 2019
Ethics approval and consent to participate
: The study was authorized as an observational study by the local Ethical Committee.
: A signed, written consent was retrospectively obtained from all patients accepting their data being included in the analysis.
: The authors declare they have no competing interests.