1. Ortega JA, Siegel SE (1993) Biological markers in pediatric solid tumours. In: Pizzo PA, Poplack DG (eds) Principles and practice of pediatric oncology. JB Lippincott, Philadelphia, pp 179–194
2. Tsuchida Y (1986) Markers in childhood solid tumours. In: Hays DM (ed) Pediatric surgical oncology. Grune and Stratton, New York, pp 7–62
3. Lindblom A, Liljegren A (2000) Tumour markers in malignancies. BMJ 320:424–427
4. Perkins GL, Slater ED (2003) Serum Tumour markers. Am Earn Physician 68:1075–1082
5. Riley RD, Heney D (2004) A systemic review of molecular and biological tumour markers in neuroblastoma. Clin Cancer Res 10:4–12