“…10,16,21,34,41,44,[56][57][58][73][74][75] In FM in particular, CBT has been proven effective at producing modest outcomes across multiple domains, including pain, fatigue, physical functioning, and mood, 4,7,23,24,26,28,32,64,72,77 even when it is provided in a group format. 38,77 Nevertheless, some authors have questioned the usefulness of CBT in the treatment of some key symptoms of FM, such as pain, fatigue and sleep disturbances.…”