Erratum to: Acta Neurochir
DOI 10.1007/s00701-009-0253-1
Two of the patients in this paper were included in a recent publication in the radiological literature on this subject: Nguyen et al. (2009) Extraosseous chordoma of the nasopharynx. AJNR Am J Neuroradiol. doi:10.3174/ajnr.A1446.
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The online version of the original article can be found at http://dx.doi.org/10.1007/s00701-009-0253-1.
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Coppens, J.R., Ric Harnsberger, H., Finn, M.A. et al. Oronasopharyngeal chordomas. Acta Neurochir 151, 909 (2009). https://doi.org/10.1007/s00701-009-0303-8
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DOI: https://doi.org/10.1007/s00701-009-0303-8