title: Breath-holding spells and vitamin B6.
mesh_terms: D002653:Child Behavior Disorders / Q000188:drug therapy* / Q000209:etiology; D002675:Child, Preschool; D006801:Humans; D008297:Male; D011736:Pyridoxine / Q000627:therapeutic use*; D012119:Respiration; D014364:Tryptophan; D026681:Vitamin B 6 Deficiency / Q000150:complications
chemical_list: D014364:Tryptophan; D011736:Pyridoxine