Tapiovaara, Laura K. http://orcid.org/0000-0002-9747-6624
Aro, Katri L. S. http://orcid.org/0000-0001-8103-5237
Bäck, Leif J. J. http://orcid.org/0000-0001-8383-7671
Koskinen, Anni I. M. http://orcid.org/0000-0002-6644-024X
Funding for this research was provided by:
Helsingin ja Uudenmaan Sairaanhoitopiiri (HUS/66/2018)
Article History
Received: 23 May 2019
Accepted: 28 August 2019
First Online: 5 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was not required for this type of retrospective study.