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Res Clin Oncol 2008, 134:1037–1042.PubMedCrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions LDL and HNY collected data and specimens, carried out the RT-PCR and immunochemistry staining, analyzed the results and drafted the manuscript. XYW conceived and designed the experiments, drafted and revised the manuscript critically and gave final approval of the version to be published. JRZ and DYL helped to collected bronchoscopic biopsy specimens. JYL helped to carry out the immunochemistry staining and assessed the slides. CMW, JYW, JHW and MJ participated in study coordination and statistical analysis. BWM conceived and designed of the study, performed the interpretation of data, literature search, writing and revising. All authors read and approved the final manuscript.”
“Background Medulloblastoma (MB) is the most GSK2126458 order common malignant brain tumor in childhood and accounts for 20% of such entities. It arises during embryonic development from neural precursor cells in the precerebellum or the dorsal brain stem .