%0 Journal Article %T Clinical and Ultrasound Examination of the Leeds Enthesitis Index in Psoriatic Arthritis and Rheumatoid Arthritis %A G. Ibrahim %A C. Groves %A M. Chandramohan %A A. Beltran %J ISRN Rheumatology %D 2011 %I Hindawi Publishing Corporation %R 10.5402/2011/731917 %U http://dx.doi.org/10.5402/2011/731917