THE arcOGEN CONSORTIUM: STAGE 1 OF A GENOME-WIDE ASSOCIATION SCAN FOR OSTEOARTHRITIS by Panoutsopoulou, K, Southam, L, Rayner, W, Zhai, G, Beazley, C, Arden, N, Carr, A, Chapman, K, Deloukas, P, Doherty, M, McCaskie, A, Olher, W, Ralston, S, Spector, T, Valdes, A, Wallis, G, Wilkinson, M, Arden, E, Battley, K, Blackburn, H, Blanco, F, Bumpstead, S, Cupples, A, Day-Williams, A, Dixon, K