Investigation of IL1, VEGF, PPARG and MEFV genes in psoriatic arthritis susceptibility. Issue 2 (28th July 2011) - Bowes, John; Ho, Pauline; Flynn, Edward; Salah, Salma; McHugh, Neil; FitzGerald, Oliver; Packham, Jonathan; Morgan, Ann W; Helliwell, Philip S; Bruce, Ian N; Barton, Anne