RT Journal Article SR Electronic T1 Infliximab in refractory psoriatic arthritis with severe psoriasis: a 2-year experience JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 270 OP 271 DO 10.1136/ard.2006.058735 VO 66 IS 2 A1 Paraskevi V Voulgari A1 Aliki I Venetsanopoulou A1 Efstratios K Epagelis A1 Yannis Alamanos A1 Ioanna Takalou A1 Alexandros A Drosos YR 2007 UL http://ard.bmj.com/content/66/2/270.abstract AB