KRAS and neoplasm: Overall success (of at least one patient-individual model successfully established) was significantly influenced by tumor localization (p = 0.011), staging parameters N (p = 0.011), M (p = 0.008), G (p = 0.006), and R (p = 0.026), the UICC stage (p = 0.023), mutation status of the genes K-Ras (p = 0.014) and B-Raf (p = 0.022), the molecular subtype (p = 0.024), and the MSI status (p = 0.019) (Table 2C).