Authors: Frank Buttgereit; Gisela Doering; Achim Schaeffler; Stephan Witte; Stanislaw Sierakowski; Erika Gromnica-Ihle; Slawomir Jeka; Klaus Krueger; Jacek Szechinski; Rieke Alten Journal: Lancet Date: 2008-01-19 Impact factor: 79.321
Authors: Frank Buttgereit; Gisela Doering; Achim Schaeffler; Stephan Witte; Stanislaw Sierakowski; Erika Gromnica-Ihle; Slawomir Jeka; Klaus Krueger; Jacek Szechinski; Rieke Alten Journal: Ann Rheum Dis Date: 2010-06-11 Impact factor: 19.103