TY - GEN AU - Kiltz,Uta AU - van der Heijde,Désiréé AU - Cieza,Alarcos AU - Boonen,Annelies AU - Stucki,Gerold AU - Ustün,Bedirhan AU - Braun,Juergen TI - Developing and validating an index for measuring health in patients with ankylosing spondylitis SN - 1462-0332 PY - 2011///1214 KW - Disability Evaluation KW - Health Status Indicators KW - Humans KW - International Cooperation KW - Organizational Objectives KW - Severity of Illness Index KW - Spondylitis, Ankylosing KW - classification KW - World Health Organization N1 - Publication Type: Journal Article; Validation Study UR - https://doi.org/10.1093/rheumatology/keq315 ER -