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. The gene discussed is NOS2; the disease is central nervous system cancer.