Retraction Note to: Med Oncol (2014) 31:251 DOI 10.1007/s12032-014-0251-x
This article has been retracted by the authors because the authors discovered statistical errors which need further validation.
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The online version of the original article can be found under doi:10.1007/s12032-014-0251-x.
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Yao, J., Wang, Jy., Liu, Y. et al. Retraction Note to: A randomized phase II study of everolimus for advanced pancreatic neuroendocrine tumors in Chinese patients. Med Oncol 32, 221 (2015). https://doi.org/10.1007/s12032-015-0661-4
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DOI: https://doi.org/10.1007/s12032-015-0661-4