1. Local twitch response in human muscle evoked by palpation and needle penetration of a trigger point;Dexter;Arch Phys Med Rehabil,1981
2. Myofascial pain syndrome: electromyographic changes associated with local twitch response;Fricton;Arch Phys Med Rehabil,1985
3. Electromyographic analysis of local twitch responses of human extensor digitorum communis muscle during ischemic compression over the arm;Hong;Arch Phys Med Rehabil,1986
4. Myofascial pain syndrome due to trigger points;Simons,1988