Figure 2From: Prognostic impact of detecting viable circulating tumour cells in gastric cancer patients using a telomerase-specific viral agent: a prospective study GFP signal intensities from various cancer cell lines. The bottom and top of the box are the lower and upper quartiles, and the band of the box is the median. The lines on the end of the whiskers are minimum and maximum. The y axis represents GFP signal intensity on a log scale.Back to article page