Carlson, C., Wynn, K., Edwards, J., Okeson, J., Nitz, A., Workman, D., & Cassisi, J. (1996). Ambulatory electromyogram activity in the upper trapezius region: patients with muscle pain vs. pain-free control subjects. Spine, 21(5), 595-9. https://doi.org/10.1097/00007632-199603010-00012 (Original work published 1996)

Carlson, C., Okeson, J., Falace, D., Nitz, A., & Lindroth, J. (1993). Reduction of pain and EMG activity in the masseter region by trapezius trigger point injection. Pain, 55(3), 397-400. https://doi.org/10.1016/0304-3959(93)90018-K

Carlson, C., Okeson, J., Falace, D., Nitz, A., Curran, S., & Anderson, D. (1969). Comparison of psychologic and physiologic functioning between patients with masticatory muscle pain and matched controls. Journal of Orofacial Pain, 7(1), 15-22. (Original work published 1969)

Carlson, C., & Nitz, A. (1991). Negative side effects of self-regulation training: relaxation and the role of the professional in service delivery. Biofeedback and Self-Regulation, 16(2), 191-7. https://doi.org/10.1007/BF01000193

Carlson, C., Okeson, J., Falace, D., Nitz, A., & Anderson, D. (1969). Stretch-based relaxation and the reduction of EMG activity among masticatory muscle pain patients. Journal of Craniomandibular Disorders : Facial & Oral Pain, 5(3), 205-12. (Original work published 1969)

Carlson, C., FL, C. , Jr, Nitz, A., Sturgis, E., & Rogers, J. (1990). Muscle stretching as an alternative relaxation training procedure. Journal of Behavior Therapy and Experimental Psychiatry, 21(1), 29-38. https://doi.org/10.1016/0005-7916(90)90046-n