FAT1‐HR, FAT1‐associated high risk; FAT1‐LR, FAT1‐associated low risk; FHCRC, Fred Hutchinson Cancer Research Center; HNSCC, head and neck squamous cell carcinoma; KHUMC, Kyung Hee University Medical Center; MDACC, MD Anderson Cancer Center; NA, not available; TCGA, The Cancer Genome Atlas. This evidence concerns the gene FAT1 and head and neck squamous cell carcinoma.