4Frymoyer JW,Cats-Bsril WL.An overview of the incidences and costs of low back pain [J].Orthop Clin Nor(Am),1991,22:263-268.
5Simons DG, Travell JG,Simons LS.Myofascial pain and dysfunction: the trigger point manual[M].Vol 1,upper half of body.2nd ed. Baltimore: Williams&Wikins, 1999.15-250.
6Borg-Stein J,Simons DG.Focused review: myofascial pain[J].Arch Phys Med Rehabil,2002,83(3): 40-49.
7Hubbard DR,Berkoff GM.Mvofascial trigger points show spontaneous needle EMG activity[J].Spine,1993,18(13):1803-1807.
9Hong CZ. Lidocaine injection versus dry needling to myofascial trigger point: the importance of the local twitch response[J].Am J Phys Med Rehabil,1994,73(4):256-263.
10Chu J, Schwartz I. The muscle twitch in myofascial pain relief:effects of acupuncture and other needling methods[J].Electromyogr Clin Neurophysiol,2002, 42(5):307-311.
