Efficacy of a web-based self-help tool to reduce problem gambling in Switzerland: study protocol of a two-armed randomised controlled trial

por Baumgartner, Christian, Bilevicius, Elena, Khazaal, Yasser, Achab, Sophia, Schaaf, Susanne, Wenger, Andreas, Haug, Severin, Keough, Matthew, Hodgins, David, Schaub, Michael P
Publicado 2019