Onder, Graziano http://orcid.org/0000-0003-3400-4491
Giovannini, Silvia
Sganga, Federica
Manes-Gravina, Ester
Topinkova, Eva
Finne-Soveri, Harriet
Garms-Homolová, Vjenka
Declercq, Anja
van der Roest, Henriëtte G.
Jónsson, Pálmi V.
van Hout, Hein
Bernabei, Roberto
Article History
Received: 2 October 2017
Accepted: 4 January 2018
First Online: 16 January 2018
Compliance with ethical standards
:
: Authors have no conflicts of interest to declare.
: All procedures performed in this study involving human participants were in accordance with the ethical approval and standards of the local ethics committees.
: Ethical approval was obtained from the ethics committees of the participating centers.
: All participants gave written informed consent.