ter Wee, M. M., van Tuyl, L. H., Blomjous, B. S., Lems, W. F., Boers, M., & Terwee, C. B. (2016). Content validity of the Dutch Rheumatoid Arthritis Impact of Disease (RAID) score: Results of focus group discussions in established rheumatoid arthritis patients and comparison with the International Classification of Functioning, Disability and Health core set for rheumatoid arthritis. Arthritis Res Ther.

ter Wee, Marieke M., Lilian H. van Tuyl, Birgit S. Blomjous, Willem F. Lems, Maarten Boers, e Caroline B. Terwee. "Content Validity of the Dutch Rheumatoid Arthritis Impact of Disease (RAID) Score: Results of Focus Group Discussions in Established Rheumatoid Arthritis Patients and Comparison With the International Classification of Functioning, Disability and Health Core Set for Rheumatoid Arthritis." Arthritis Res Ther 2016.

ter Wee, Marieke M., et al. "Content Validity of the Dutch Rheumatoid Arthritis Impact of Disease (RAID) Score: Results of Focus Group Discussions in Established Rheumatoid Arthritis Patients and Comparison With the International Classification of Functioning, Disability and Health Core Set for Rheumatoid Arthritis." Arthritis Res Ther 2016.