title: Letter: Laboratory diagnosis of neuroblastoma.
mesh_terms: D002395:Catecholamines / Q000652:urine; D002648:Child; D002854:Chromatography, Paper; D019411:Clinical Laboratory Techniques; D006801:Humans; D009447:Neuroblastoma / Q000175:diagnosis / Q000652:urine*
chemical_list: D002395:Catecholamines