Bhatti et al. studied the associations of nine NOS1 SNVs (see Section 2.1.5 on “Brain Tumors” regardingNOS1); NOS2 SNVs rs944725, rs4795067, rs2297516, rs2779252, and rs8072199; and threeNOS3 SNVs (see Section 2.4.8 on “Brain Tumors” regardingNOS3) with a risk of brain tumors in 362 patients with glioma (176 of whom had glioblastoma multiforme), 134 patients with meningioma, and 494 healthy controls. This evidence concerns the gene NOS1 and glioblastoma.