S100A12 and arthritic joint disease: 9 Foell Foell D D Wittkowski Wittkowski H H Hammerschmidt Hammerschmidt I I Wulffraat Wulffraat N N Schmeling Schmeling H H Frosch Frosch M M Monitoring neutrophil activation in juvenile rheumatoid arthritis by S100A12 serum concentrations Monitoring neutrophil activation in juvenile rheumatoid arthritis by S100A12 serum concentrations Arthritis Rheum Arthritis Rheum 2004 2004 50 50 1286 1286 1295 1295 10.1002/art.20125 10.1002/art.20125 15077313 15077313