G. E. Shields, BTSM and D. J. M. Smith, PhD, “Remedial massage therapy interventions including and excluding sternocleidomastoid, scalene, temporalis and masseter muscles for Chronic Tension Type Headaches: A case series”., Int J Ther Massage Bodywork, vol. 13, no. 1, pp. 22–31, Feb. 2020.