REFERENCES
- Simons DG, Travell JG, Simons LS. Travell & Simons' Myofascial Pain and Dysfunction: The Trigger Point ManualEd. 2. Williams & Wilkins, Baltimore 1999; 1
- Travell J, Berry C, Bigelow N. Effects of referred somatic pain on structures in the reference zone. Fed Proc 1944; 3: 49