Studies have reported that SNPs in the CDKN2B gene, which are in modest LD with rs4977756 (e.g., rs3217992, r2 = 0.41) are associated with the risk of PC and pancreatic neuroendocrine tumors (Campa et al., 2016a,b). The gene discussed is CDKN2B; the disease is pachyonychia congenita.