RT Journal Article SR Electronic T1 Enzymes aid invasion of arthritic joints JF Molecular Pathology JO Mol Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 10 OP 10 DO 10.1136/mp.56.1.10 VO 56 IS 1 YR 2003 UL http://mp.bmj.com/content/56/1/10.abstract AB