Niini, Tarmo http://orcid.org/0000-0001-8876-1151
Laakso, Aki
Tanskanen, Päivi
Niemelä, Mika
Luostarinen, Teemu
Article History
First Online: 14 February 2019
Conflicts of Interest
: The authors declare that they have no conflict of interest.
: The study was approved by the Helsinki University Hospital Scientific Board.