[1] Hosp Univ Marques Valdecilla, Rheumatol Unit, Santander, Spain
[2] Hosp Clin Univ San Carlos, Dept Rheumatol, Madrid, Spain
[3] Hosp Valle De Hebron, Spondiloarthropaties Unit, Barcelona, Spain
[4] Hosp Clin Barcelona, Inst Clin Oftalmol, Barcelona, Spain
[5] Hosp Clin Univ San Carlos, Ocular Surface & Inflammat Unit, Madrid, Spain
[6] Abbott Labs, Hlth Management & Inst Affairs, Madrid, Spain
[7] Abbott Labs, Dept Med, Madrid, Spain
[8] Abbott Labs, Hlth Econ & Outcomes Res, Madrid, Spain