title: Letter: Hereditary factors in hyperkinesis.
mesh_terms: D005190:Family; D030342:Genetic Diseases, Inborn; D006801:Humans; D006948:Hyperkinesis / Q000188:drug therapy / Q000235:genetics*; D008774:Methylphenidate / Q000009:adverse effects; D011605:Psychoses, Substance-Induced; D012559:Schizophrenia / Q000188:drug therapy
chemical_list: D008774:Methylphenidate