Braga, D. T.; Cordioli, A. V.; Niederauer, K.; Manfro, G. G.(2005) . Cognitive-behavioral group therapy for obsessive–compulsive disorder: a 1-year follow-up. Acta Psychiatr Scand, 112(3), 180-186. doi: 10.1111/j.1600-0447.2005.00559.x
Roberts Collins, C.(2016). A case study of an adolescent with health anxiety and OCD, treated using CBT: single case experimental design. Journal of Child and Adolescent Psychiatric Nursing, 29(2), 95-104. doi: 10.1111/jcap.12136