iCogCA to Promote Cognitive Health Through Digital Group Interventions for Individuals Living With a Schizophrenia Spectrum Disorder: Protocol for a Nonrandomized Concurrent Controlled Trial - Christy Au-Yeung; Helen Thai; Michael Best; Christopher R Bowie; Synthia Guimond; Katie M Lavigne; Mahesh Menon; Steffen Moritz; Myra Piat; Geneviève Sauvé; Ana Elisa Sousa; Elisabeth Thibaudeau; et al. (JMIR Research Protocols)