Received: 19 August 2019
Accepted: 6 February 2020
First Online: 1 June 2020
Ethical approval and consent to participate
: Written consent was not collected given that all data were collected for clinical purposes, as part of standard care. Patients had the opportunity to refuse the use of their anonymized data for scientific research. The institutional review board of GGzE gave ethical clearance for the retrospective, anonymized use of the clinical data for research purposes.
: Not applicable.
: The authors declare that they have no competing interests.