Efficacy of intergrating vestibular rehabilitation and cognitive behaviour therapy in persons with persistent dizziness in primary care- a study protocol for a randomised controlle... oleh Lene Kristiansen, L. H. Magnussen, K. T. Wilhelmsen, S. Mæland, S. H. G. Nordahl, R. Clendaniel, A. Hovland, B. Juul-Kristensen