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Gait & Posture > 1997 > 6 > 3 > 224-236
Archives of Gerontology and Geriatrics > 1997 > 25 > 1 > 131-139
Experimental Gerontology > 1995 > 30 > 3-4 > 423-430
Journal of Back and Musculoskeletal Rehabilitation > 1995 > 5 > 1 > 7-17