The incidence and risk factors for psoriatic arthritis in patients with psoriasis – a prospective cohort study. Arthritis Rheumatol. 2015; [Epub ahead of print] 2016; doi: 10.1002/art.39494 ...

A new study from Weill Cornell Medicine found that patients with isolated nail psoriasis had nail findings for almost 3 years before they were diagnosed with psoriatic arthritis. It may be ...