title: 3,4-Dihydroxyphenylalanine in the urine of patients with ocular malignant melanoma.
mesh_terms: D002498:Centrifugation; D002854:Chromatography, Paper; D004295:Dihydroxyphenylalanine / Q000652:urine*; D005134:Eye Neoplasms / Q000652:urine*; D005374:Filtration; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008545:Melanoma / Q000652:urine*; D008722:Methods; D012972:Sodium Hydroxide; D013464:Sulfuric Acids
chemical_list: D013464:Sulfuric Acids; D012972:Sodium Hydroxide; D004295:Dihydroxyphenylalanine