Gaskell, George http://orcid.org/0000-0001-6135-9496
Bard, Imre http://orcid.org/0000-0001-6395-0335
Allansdottir, Agnes http://orcid.org/0000-0003-0961-2380
da Cunha, Rui Vieira
Eduard, Peter
Hampel, Juergen
Hildt, Elisabeth http://orcid.org/0000-0003-1314-5527
Hofmaier, Christian
Kronberger, Nicole
Laursen, Sheena
Meijknecht, Anna
Nordal, Salvör
Quintanilha, Alexandre
Revuelta, Gema http://orcid.org/0000-0002-0701-2026
Saladié, Núria
Sándor, Judit
Santos, Júlio Borlido
Seyringer, Simone
Singh, Ilina http://orcid.org/0000-0003-4497-3587
Somsen, Han
Toonders, Winnie
Torgersen, Helge
Torre, Vincent
Varju, Márton
Zwart, Hub
Article History
First Online: 9 November 2017
Competing interests
: The authors declare no competing financial interests.