Funding for this research was provided by:
Sigrid Juséliuksen Säätiö
Special Government Funding Kuopio University Hospital
Competitive Research Funding of the Tampere Medical Research Fund of Tampere University Hospital
North-Savo Cancer Foundation
Paavo Koistinen Foundation
Suomalainen Lääkäriseura Duodecim
Text and Data Mining valid from 2018-06-18
Received: 1 February 2018
Accepted: 31 May 2018
First Online: 18 June 2018
Ethics approval and consent to participate
: The study protocol was approved by Ethical Board of Northern Savo Hospital District 108/2010, Ethical Committee of Tampere University Hospital, National Authority for Medicolegal Affairs of Finland and VALVIRA 9121/2010.In the present study, written human subject consent was not necessary, because this registry study protocol was retrospective and thus the consent of the patients for participation was not required.
: The authors declare that they have no competing interests.
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