Kunz, Pierre ; Sähr, Heiner ; Lehner, Burkhard ; Fischer, Christian ; Seebach, Elisabeth ; Fellenberg, Jörg (2016) Elevated ratio of MMP2/MMP9 activity is associated with poor response to chemotherapy in osteosarcoma. BMC Cancer, 16 (223). pp. 1-10. ISSN 1471-2407