References

1.Simons DG, Travel J, Simons LS. Myofascial Pain and Dysfunction: The Trigger Point Manual. Upper Half of Body Baltimore: Williams and Wilkins. 1999;2.
2. Sergienko S, Kalichman L. Myofascial origin of shoulder pain: a literature review. J Bodyw Mov Ther. 2015;19(1):91-101. doi:10.1016/j.jbmt.2014.05.004.