Funding for this research was provided by:
Tampere university hospital support foundation
Article History
Received: 17 April 2020
Accepted: 21 May 2020
First Online: 28 May 2020
Compliance with ethical standards
:
: The authors state that they have no conflicts of interest.
: This is an observational study. The Tampere University Hospital Research Ethics Committee has confirmed that no ethical approval is required.