[Corrigendum] Aberrant methylation of CXCL12 in non-small cell lung cancer is associated with an unfavorable prognosis.

The PCR panels presented in Figs. 1 and 2 are incorrect. The authors provide the correct figures below. These changes do not affect the interpretation or conclusions of this work. The authors regret this error. [the original article was published in the International Journal of Oncology 33: 113-119, 2008 DOI: 10.3892/ijo.33.1.113]