Griffiths, Mark D.; van Rooij, Antonius J.; Kardefelt-Winther, Daniel; Starcevic, Vladan; Király, Orsolya; Pallesen, Stale; Müller, Kai; Dreier, Michael; Carras, Michelle; King, Daniel L.; Prause, Nicole; Aboujaoude, Elias; Kuss, Daria J.; Pontes, Halley; Fernandez, Olatz Lopez; Nagygyörgy, Katalin; Achab, Sophia; Billieux, Joel; Quandt, Thorsten; Carbonell, Xavier; Ferguson, Christopher J.; Hoff, Rani A.; Derevensky, Jeffrey; Haagsma, Maria C.; Delfabbro, Paul; Coulson, Mark; Hussain, Zaheer; Demetrovics, Zsolt