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Showing articles 0 to 4 of 4 Filter Applied: strain,back (Click to remove) Back Pain & Sciatica NEJM 318:291-300, Frymoyer,J.W., 1988 Clinical Trial of Intensive Muscle Training for Chronic Low Back Pain Lancet 2:1473-1476, Manniche,C.,et al, 1988 How Many Days of Bed Rest for Acute Low Back Pain NEJM 315:1064-1070, 1090-10921986., Deyo,R.A.,et al, 1986 Disc Disease or Back Strain Consultant, Feb 1971, p. 66., Gardner,R., 1971 Showing articles 0 to 4 of 4