‚Exercise to me is a scary word‘: perceptions of fatigue, sleep dysfunction, and exercise in people with fibromyalgia syndrome-a focus group study

Russell D1, Álvarez Gallardo IC2, Wilson I1, Hughes CM1, Davison GW3, Sañudo B4, McVeigh JG
Rheumatol Int. 2018 Mar;38(3):507-515. doi: 10.1007/s00296-018-3932-5. Epub 2018 Jan 16

https://www.ncbi.nlm.nih.gov/pubmed/29340774