Kuismanen, K.
Nieminen, K.
Karjalainen, K.
Lehto, K.
Uotila, J.
Article History
Received: 15 February 2017
Accepted: 15 January 2018
First Online: 15 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Tampere University Hospital Science center according to the Finnish legislation and Helsinki declaration.
: For this type of study, formal consent is not required.