academic article

• Reliability, validity, and minimally important differences of the SF-6D in systemic sclerosis..  Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation.  16:1083-92. 2007
• Reliability, validity, and minimally important differences of the SF-6D in systemic sclerosis.  Quality of Life Research.  2007
• Assessment of SF-6D, a preference measure, in systemic sclerosis.  Arthritis & Rheumatism-arthritis Care & Research.  2006