Focal Hand Dystonia, also known as organic writer's cramp, is related to focal dystonia and basal ganglia disease, and has symptoms including ataxia and spasmodic torticollis. An important gene associated with Focal Hand Dystonia is CBS (Cystathionine Beta-Synthase). The drugs Acetylcholine and Cholinergic Agents have been mentioned in the context of this disorder. Affiliated tissues include brain and cortex, and related phenotypes are nervous system and behavior/neurological