Bock, N.C.
Saffar, M.
Hudel, H.
Evälahti, M.
Heikinheimo, K.
Rice, D.P.C.
Ruf, S.
Article History
Received: 5 September 2017
Accepted: 8 January 2018
First Online: 20 February 2018
Compliance with ethical guidelines
:
: N. Bock, M. Saffar, H. Hudel, M. Evälahti, K. Heikinheimo, D. Rice and S. Ruf declare that they have no competing interests.
: 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.