TY - JOUR AU - Bellamy, N; Buchanan, W W; Goldsmith, C H; Campbell, J; Stitt, L W TI - Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee JO - J Rheumatol IS - 12 VL - 15 PY - 1988 SP - 1833 EP - 1840 ER -