Figure 1.

Expression levels of miR-520b in NSCLC tissues. Reverse transcription-quantitative polymerase chain reaction was performed to detect the expression levels of miR-520b in (A) NSCLC tissues and adjacent tissues, as well as based on different subgroup analysis (**P<0.01 vs. adjacent tissues), including (B) with or without lymph node metastasis (*P<0.05 vs. N0), (C) TNM staging (*P<0.05 vs. I/II) and (D) differentiation status (*P<0.05 vs. the well group). miR, microRNA; NSCLC, non-small cell lung cancer. N0, with no lymph node metastasis; N1, with lymph node metastasis.