“RESULTS A … therapy of chondroitin sulfate … glucosamine hydrochloride was effective in reducing WOMAC pain by 20% (differences of 23.4%, P=0.006) and 50% (differences of 15.7%, P=0.016), WOMAC pain (P=0.032), WOMAC stiffness (P=0.043), and WOMAC total score (P=0.035).”