Seven had no epilepsy, but another brain disorder (category 1b): there were two children with migraine, two children with autism spectrum disorder, one child with a chromosomal microduplication and autism, one child with GLUT1 (Glucose Transport type 1) deficiency syndrome, and one child with a history of acute symptomatic seizures during bacterial meningitis. Here, SLC2A1 is linked to autism spectrum disorder.