Subjects: KNEE physiology; HIP joint physiology; DIAGNOSISCALIFORNIA
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Subjects: CHI-squared test; CONFIDENCE intervals; MOVEMENT disordersCALIFORNIA; VIRGINIA
Subjects: ACADEMIC medical centers; CHI-squared test; CRITICAL care medicineCALIFORNIA
Subjects: ANALYSIS of covariance; ANALYSIS of variance; ARMCALIFORNIA; TEXAS
Subjects: TREATMENT of backaches; MEDICAL care; HEALTH outcome assessmentCALIFORNIA