TM4SF1 and neoplasm: In contrast, mean tumor volumes in Tm4sf1‐heterozygous mice were 63.1 ± 14.2 mm3 at day‐6 and 297 ± 51.9 mm3 at day‐12, and tumors ultimately reached a size of 1472 ± 200.9 mm3 on day‐25 (Figure 1A).