British journal of rheumatology · 2003 · 156 citations · 40 references
These results suggest that physical disability, helplessness and passive coping have a significant impact on the levels of pain and depression experienced by RA patients.
40
Lenore Sawyer Radloff · Applied Psychological Measurement · 1977 · 52.6K citations · Full text
Psychological Co-morbidities, Measurement, Multiple Scale +19