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List of works by Helmut Ostertag

Alterations of G1-S checkpoint in chordoma: the prognostic impact of p53 overexpression

scientific article published in September 2005

Chordomas of the skull base: surgical management and outcome

scientific article published in August 2007

Connection between expression of inducible nitric oxide synthase (iNOS) in skull base chordoma and lower urinary tract symptoms

scientific article published on 12 August 2014

Expression of PDGFR-α, EGFR and c-MET in spinal chordoma: a series of 52 patients

scientific article published in February 2014

Expression of c-MET, low-molecular-weight cytokeratin, matrix metalloproteinases-1 and -2 in spinal chordoma

scientific article published on 19 March 2009

Expression of hepatocyte growth factor and c-MET in skull base chordoma

scientific article published in January 2008

Expression of matrix metalloproteinase (MMP)-1, MMP-2, MMP-9, cathepsin B, and urokinase plasminogen activator in non-skull base chordoma

scientific article published in December 2004

Expression of matrix metalloproteinases-1, -2, and -9; tissue inhibitors of matrix metalloproteinases-1 and -2; cathepsin B; urokinase plasminogen activator; and plasminogen activator inhibitor, type I in skull base chordoma

scientific article published on 18 October 2007

Expression of vascular endothelial growth factor receptor 2 (VEGFR-2), inducible nitric oxide synthase (iNOS), and Ki-M1P in skull base chordoma: a series of 145 tumors

scientific article published on 3 September 2013

Histogenesis of intralesional fibrous septum in chordoma

scientific article published in January 2005

Immunohistochemical expression of receptor tyrosine kinase PDGFR-α, c-Met, and EGFR in skull base chordoma

scientific article published on 17 October 2014

Intralesional fibrous septum in chordoma: a clinicopathologic and immunohistochemical study of 122 lesions

scientific article published in August 2005

Prognostic significance of immunohistochemical expression of VEGFR2 and iNOS in spinal chordoma

scientific article published on 15 June 2014

Skull base and nonskull base chordomas: clinicopathologic and immunohistochemical study with special reference to nuclear pleomorphism and proliferative ability

scientific article published in November 2003

Uncommon primary mediastinal tumours

scientific article (publication date: February 2004)

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