Comparing the visual analogue scale (VAS) and the numerical rating scale (NRS) in patient reported outcomes in PsA by Ye, W, Hackett, S, Vandevelde, C, Twigg, S, Coates, LC

The Multidimensional Health Assessment Questionnaire (MDHAQ) and the Heath Assessment Questionnaire Disability Index (HAQDI): a comparison in patients with psoriatic arthritis by Ye, W, Hackett, S, Vandevelde, C, Twigg, S, Coates, LC

Comparing the visual analogue scale and the numerical rating scale in patient-reported outcomes in psoriatic arthritis by Ye, W, Hackett, S, Vandevelde, C, Twigg, S, Helliwell, PS, Coates, LC

Measuring physical function in psoriatic arthritis: comparing the Multi-Dimensional Health Assessment Questionnaire to the Health Assessment Questionnaire Disability Index by Ye, W, Hackett, S, Vandevelde, C, Twigg, S, Helliwell, PS, Coates, LC