PT  - JOURNAL ARTICLE
AU  - Désirée M F M van der Heijde
TI  - Assessment of radiographs in longitudinal observational studies.
DP  - 2004 Mar 01
TA  - The Journal of Rheumatology
PG  - 46--47
VI  - 69
4099  - http://www.jrheum.org/content/69/46.short
4100  - http://www.jrheum.org/content/69/46.full
SO  - J Rheumatol2004 Mar 01; 69
AB  - Radiographs are important to assess structural damage in longitudinal studies. This article describes several issues on the selection of films, frequency of followup, scoring of radiographs, and presentation of results, especially in the context of longitudinal studies.