First, researchers observed a lower frequency of KRAS mutations compared with the Caucasian population (15.7% and 20–35% respectively) [35], and, second, researchers described that Hispanics have more KRAS changes in exon 2 codon 13 and in exon 3 codon 59 than non-Hispanics [47], possibly explaining the inferior cancer aggressiveness. Here, KRAS is linked to cancer.