Guided imagery in people with fibromyalgia: a randomized controlled trial of effects on pain, functional status and self-efficacy.

Verkaik, R., Busch, M., Koeneman, T., Berg, R. van den, Spreeuwenberg, P., Francke, A.L. Guided imagery in people with fibromyalgia: a randomized controlled trial of effects on pain, functional status and self-efficacy. Journal of Health Psychology: 2014, 19(5), 678-688