1. Richard Jones, ME, MACPSM, is a Biomedical Engineer, Department of Medical Physics and Biomedical Engineering, Christchurch Hospital, Christchurch, New Zealand
2. Helen Giddens, NZROT, and Dinah Croft, NZROT, are Occupational Therapists, Department of Occupational Therapy, Christchurch Hospital, Christchurch, New Zealand