1. 1. Kilburn LB, Siegel SE, Steuber CP. Clinical assessment and differential diagnosis of the child with suspected cancer. In: Pizzo PA, Poplac D G, eds. Principles and practice of pediatric oncology. 6th ed. Philadelphia, USA: Lippincott Williams and Wolters 2011:123-35.
2. Report from the Automated Childhood Cancer Information System project;Stiller;Eur J Cancer,2006
3. Epidemiologic findings of cancer detected in a pediatric emergency department;Kundra;Clin Pediatr (Phila),2009
4. 4. Fragkandrea I, Nixon JA, Panagopoulou P. Signs and symptoms of childhood cancer: a guide for early recognition. Am Fam Physician 2013;88:185-92.
5. Diagnosis delays in childhood cancer: a review;Dang-Tan T;Cancer,2007