“You don't put it down to arthritis”: A qualitative study of the first symptoms recalled by individuals with knee osteoarthritis oleh L.K. King, A. Mahmoudian, E.J. Waugh, I. Stanaitis, M. Gomes, V. Hung, C. MacKay, J.W. Liew, Q. Wang, A. Turkiewicz, I.K. Haugen, C.T. Appleton, S. Lohmander, M. Englund, J. Runhaar, T. Neogi, G.A. Hawker