Letter: Reliable chemical diagnosis of neuroblastoma better than screening.
D006719:Homovanillic Acid / Q000652:urine*; D006801:Humans; D009447:Neuroblastoma / Q000175:diagnosis* / Q000652:urine; D010648:Phenylacetates / Q000652:urine*; D014642:Vanilmandelic Acid / Q000652:urine*
D010648:Phenylacetates; D014642:Vanilmandelic Acid; D006719:Homovanillic Acid