P. Helliwell

GRAPPA Historical Perspective

D. Gladman, P. Mease, P. Helliwell, 2016 .

Disease assessment in psoriatic spectrum: a modular approach for use in routine clinical practice

B. Kirkham, S. Oliver, E. Korendowych, 2013, Annals of the rheumatic diseases.

Product of the Physician Global Assessment and body surface area: a simple static measure of psoriasis severity in a longitudinal cohort.

J. Walsh, J. Gelfand, K. Duffin, 2013, Journal of the American Academy of Dermatology.

An audit of anthropometric measurements by medical and physiotherapy staff in patients with ankylosing spondylitis

E. Lubrano, Mike Butterworth, P. Helliwell, 1998, Clinical rehabilitation.