RT Journal Article SR Electronic T1 Effectiveness of switching between biologics in psoriatic arthritis- results of a large regional survey JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 95 OP 96 DO 10.7861/clinmedicine.14-1-95 VO 14 IS 1 A1 Meghna Jani A1 Elizabeth Macphie A1 Chandani Rao A1 Sarah Moore A1 Hoda Mirjafari A1 Yokemie Mcloughlin A1 Hector Chinoy A1 Preeti Shah YR 2014 UL http://www.rcpjournals.org/content/14/1/95.abstract