NOS1 and diffuse large B-cell lymphoma: Finally, regarding the intake of yellow/orange vegetables, it was observed that subjects with SNPs NOS1 (rs11068446) (CT or TT), NOS1 (rs1552227) (CT or TT) and NOS1 (rs7298903) (CT or CC) showed a 2.1–2.3-fold increased risk of DLBCL in the low intake group of yellow/orange vegetables and a 40–70% reduced risk in the high intake group.