Study protocol for a non-randomised controlled trial : Community-based occupational therapy intervention on mental health for people with acquired brain injury (COT-MHABI) - Raya-Ruiz, Marco Antonio (Institut Germans Trias i Pujol. Institut Guttmann) ; Rodríguez-Bailón, María (Universidad de Málaga) ; Castaño-Monsalve, Beatriz (Institut Germans Trias i Pujol. Institut Guttmann) ; Vidaña Moya, Laura (Universitat Autònoma de Barcelona) ; Fernández-Solano, Ana Judit (Universidad Católica San Antonio de Murcia) ; Merchán-Baeza, Jose Antonio (Universitat de Vic - Universitat Central de Catalunya)