title: [Breath-holding spell syndrome of functional disorder--a study of serum ferritin and erythrocyte acetylcholinesterase].
mesh_terms: D000110:Acetylcholinesterase / Q000097:blood*; D002675:Child, Preschool; D004912:Erythrocytes / Q000201:enzymology*; D005260:Female; D005293:Ferritins / Q000097:blood*; D006801:Humans; D007223:Infant; D000090463:Iron Deficiencies; D008275:Magnesium Deficiency / Q000150:complications; D008297:Male; D012119:Respiration; D013575:Syncope / Q000097:blood*; D013577:Syndrome
chemical_list: D005293:Ferritins; D000110:Acetylcholinesterase