title: IV. Joint erosion in rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000201:enzymology / Q000503:physiopathology*; D003094:Collagen; D003238:Connective Tissue / Q000378:metabolism / Q000503:physiopathology; D006025:Glycosaminoglycans / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007596:Joints / Q000201:enzymology / Q000503:physiopathology*; D008663:Metacarpus / Q000503:physiopathology; D003012:Microbial Collagenase / Q000378:metabolism; D008903:Minerals / Q000378:metabolism; D011453:Prostaglandins / Q000378:metabolism; D013583:Synovial Membrane / Q000201:enzymology / Q000503:physiopathology; D014033:Toe Joint
chemical_list: D006025:Glycosaminoglycans; D008903:Minerals; D011453:Prostaglandins; D003094:Collagen; D003012:Microbial Collagenase