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17 Cailliet R: Low Back Pain Syndrome. Ed. 3. F. A. Davis, Philadelphia, 1981 (pp. 115–121; Figs. 81, 85, 86).
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19. Clemente CD. Gray’s Anatomy. Ed. 30. Lea & Febiger, Philadelphia, 1985 (pp. 484, 485, Fig. 6-26).
20. Ibid. (pp. 488–489, Fig. 6-29).
21. Ibid. (pp. 490–491, Fig 6-31).
22. Ibid. (pp. 491–493)
23. Clemente CD: Anatomy. Ed. 3. Urban & Schwarzenberg, Baltimore, 1987 (Fig. 12).
24. Ibid. (Figs. 235, 237).
25. Ibid. (Figs. 238, 242).
26. Ibid. (Fig. 241).
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35 Feinstein B, Langton JN, Jameson RM, et al.: Experiments on pain referred from deep somatic tissues. J Bone Joint Surg 36A:981–997, 1954.
36. Flint MM: An electromyographic comparison of the function of the iliacus and the rectus abdominis muscles. J Am Phys Ther Assoc 45:248–253, 1965.