Funding for this research was provided by:
Helsingin ja Uudenmaan Sairaanhoitopiiri (N/A)
Article History
Received: 9 December 2019
Accepted: 20 January 2020
First Online: 25 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Ethics Committee of the Helsinki University Hospital approved the study and institutional research approval was granted.
: All patients taking part in the questionnaire study gave their written informed consent.