[Corrigendum] AXL and MET receptor tyrosine kinases are essential for lung cancer metastasis

Following the publication of this paper, the authors have realized that an error was made in the assembly of Fig. 1D: Specifically, the same image of migrated cells was selected for the 'Gas6' and 'HGF + Gas6' experiments pertaining to the A549 cells. The authors consider that they made this mistake during the process of copying and pasting images, owing to the similarity of the data concerned. A corrected version of Fig. 1, containing the correct data, is presented opposite. The authors sincerely apologize for this mistake, and regret any inconvenience this mistake has caused. [the original article was published in Oncology Reports 37: 2201‑2208, 2017; DOI: 10.3892/or.2017.5482].