“…For instance, myofascial pain in the area of the lumbar, thoracic, and cervical spine may be variously diagnosed as mechanical back pain, facet joint pain, root irritation, cervical-lumbar sprain, whiplash, thoracic outlet syndrome, and nonspecific low back pain. Notwithstanding these diagnostic difficulties [11], it is likely that these soft tissue or musculoskeletal pain conditions represent the majority of chronic pain disorders seen in rehabilitation settings and pain clinics [12].…”