1. Clinical and health status measures over time: prognosis and outcome assessment in rheumatoid arthritis;Wolfe;J Rheumatol.,1991
2. Functional ability, social support and quality of life. A longitudinal study in patients with early rheumatoid arthritis. PhD Thesis. University of Groningen;Doeglas;The Netherlands;,2000
3. Social support, rheumatoid arthritis and quality of life: concept, measurement and research;Krol;Patient Educ Couns.,1993
4. The impact of early rheumatoid arthritis on psychological distress;Smedstad;A comparison between 238 patients with RA and 116 matched controls. Scand J Rheumatol.,1996
5. Reitsma B. The end of the line? Evaluation of a multidisciplinary team approach to chronic pain. PhD Thesis. University of Groningen, The Netherlands; 1994.