Mairwen K. Jones and  Bethany M. Wootton and  Lisa D. Vaccaro,  The Efficacy of Danger Ideation Reduction Therapy for an 86-Year Old Man with a 63-Year History of Obsessive-Compulsive Disorder: A Case Study.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 1231 - 1237
    [viewed 17 September 2021]. Available from: