Veldhuijzen van Zanten, Jet J. C. S. https://orcid.org/0000-0001-8422-9512
Sandoo, Aamer https://orcid.org/0000-0003-3151-6408
Metsios, George S. https://orcid.org/0000-0001-5359-0436
Stavropoulos-Kalinoglou, Antonios https://orcid.org/0000-0003-0589-3226
Ntoumanis, Nikos https://orcid.org/0000-0001-7122-3795
Kitas, George D. https://orcid.org/0000-0002-0828-6176
Article History
Received: 22 August 2018
Accepted: 20 October 2018
First Online: 12 November 2018
Compliance with ethical standards.
:
: Dr Veldhuijzen van Zanten declares that she has no conflict of interest, Dr Sandoo declares that he has no conflict of interest, Prof Metsios declares that he has no conflict of interest, Dr Stavropoulos-Kalinoglou declares that he has no conflict of interest, Prof Ntoumanis declares that he has no conflict of interest, and Prof Kitas declares that he has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Informed consent: Informed consent was obtained from all individual participants included in the study.