title: Laboratory techniques and neuroblastoma screening.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D006719:Homovanillic Acid / Q000652:urine*; D006801:Humans; D007223:Infant; D007564:Japan; D009447:Neuroblastoma / Q000453:epidemiology / Q000652:urine*; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D014642:Vanilmandelic Acid; D006719:Homovanillic Acid