Expression of RAMP1 and CALCRL was confirmed in cultured oral cancer cells (https://www.proteinatlas.org/ENSG00000132329-RAMP1/cell+line#head_and_neck_cancer, accessed on 1 June 2023; https://www.proteinatlas.org/ENSG00000064989-CALCRL/cell+line#head_and_neck_cancer accessed on 1 June 2023 and [9]). This evidence concerns the gene CALCRL and lip and oral cavity carcinoma.