A pragmatic randomized controlled trial of a group self-management support program versus treatment-as-usual for anxiety disorders: study protocol oleh Pasquale Roberge, Janie Houle, Jean-Rémy Provost, Simon Coulombe, Annie Beaudin, Peter Bower, Félix Camirand Lemyre, Martin Drapeau, Marc-Simon Drouin, Catherine Hudon, Martin D. Provencher, Helen-Maria Vasiliadis