Mastrangelo, R Urinary vanilmandelic acid and homovanillic acid: markers of two distinct cell populations in neuroblastoma? [electronic resource] - Pediatric hematology and oncology - 379-81 p. digital Publication Type: Case Reports; Letter ISSN: 0888-0018 Standard No.: 10.3109/08880019109028815 doi Subjects--Topical Terms: Biomarkers, Tumor--urineChild, PreschoolFemaleFollow-Up StudiesHomovanillic Acid--urineHumansNeuroblastoma--pathologyVanilmandelic Acid--urine