At the start of the survival experiment, the sizes of the subcutaneous GLP-1R tumors were very variable, although mean tumor sizes were similar between the groups (161 ± 205 mm3 [range, 35–657 mm3] in the exendin-4-IRDye700DX group and 171 ± 144 mm3 [range, 36–480 mm3] in the control group. This evidence concerns the gene GLP1R and neoplasm.