Funding for this research was provided by:
Suomen Akatemia (260138, 259482)
Text and Data Mining valid from 2017-10-13
Received: 2 August 2016
Accepted: 28 September 2017
First Online: 13 October 2017
Compliance with Ethical Standards
: All procedures performed in studies 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 obtained from all individual participants included in the study.