How to define responders in osteoarthritis. (Current medical research and opinion, 2013)

(untitled) - Cooper, C; Adachi, J; Bardin, T; Berenbaum, F; Flamion, B; Jonsson, H; Kanis, J; Pelousse, F; Lems, W; Pelletier, J; Martel-Pelletier, J; Reiter, S; et al.