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The Measurement of Observer Agreement for Categorical Data

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Public Health, Biostatistics, Categorical Data Analysis +12

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Frank C. Arnett, Steven M. Edworthy, D. Blöch et al. · Arthritis & Rheumatism · 1988 · 19.9K citations

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The development of Assessment of SpondyloArthritis international Society classification criteria for axial spondyloarthritis (part II): validation and final selection

Martín Rudwaleit, Désirée van der Heijde, R. B. M. Landewé et al. · Annals of the Rheumatic Diseases · 2009 · 3.6K citations · Full text

Medicine, Radiology, Musculoskeletal Medicine +11

A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index.

Sylvester Garrett, T Jenkinson, L G Kennedy et al. · PubMed · 1994 · 3.2K citations

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Désirée van der Heijde, M van 't Hof, P L van Riel et al. · PubMed · 1993 · 788 citations

Medicine, Biostatistics, Internal Medicine +17