Received: 31 January 2022
Accepted: 12 July 2022
First Online: 22 July 2022
: The manuscript does not contain clinical studies or patient data according to Swiss Health Research Law. Ethical approval was not required as confirmed by the Ethics Committee of the Canton Bern, Switzerland (Req-2021–00042). Data were fully anonymised before analysis.
: Not applicable.
: All authors are employed at the institution that provides both the ISH intervention and the inpatient treatment.