ALK surface expression compared to IgG control was moderate in fusion-positive rhabdomyosarcoma xenograft model RH-41 (geometric mean 7.02x IgG control), and moderate in colorectal carcinoma xenograft models SW-48 (geometric mean 9.76x IgG control) and HCT-116 (geometric mean 5.59x IgG control, Fig. 3B, Supplemental Table 5). This evidence concerns the gene ALK and rhabdomyosarcoma.