1. Myofascial pain and dysfunction: the trigger point manual;Simons,1992
2. Travell & Simons' myofascial pain and dysfunction: upper half of body;Simons,1999
3. Focused review: Myofascial pain;Borg-Stein;Arch Phys Med Rehabil,2002
4. Clinical precision of myofascial trigger point location in the trapezius muscle;Sciotti;Pain,2001
5. Trigger points in the upper trapezius or normal subtrapezial anatomy?;Wade;Physiother Can,2001