RT Journal Article SR Electronic T1 A pilot study on changes of macrophage colony stimulating factor and transforming growth factor β1 in male patients with ankylosing spondylitis taking thalidomide JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 781 OP 782 DO 10.1136/ard.2009.114397 VO 69 IS 4 A1 PT Yang A1 WG Xiao A1 L Qin A1 LJ Zhao A1 LM He A1 M Ito YR 2010 UL http://ard.bmj.com/content/69/4/781.abstract AB