CHECK (Cohort Hip and Cohort Knee): similarities and differences with the Osteoarthritis Initiative
Wesseling, J., Dekker, J., van den Berg, W., Bierma-Zeinstra, S.M.A., Boers, M., Cats, H., Deckers, P., Gorter, K.J., Heuts, P.H., Hilberdink, W.K., Kloppenburg, M., Nelissen, R.G., Oosterveld, F.G., Oostveen, J.C., Roorda, L.D., Viergever, M.A., ten Wolde, S., Lafeber, F.P.J.G., Bijlsma, J.W.J.
Annals of the Rheumatic Diseases 68 (9), p. 1413-1419