1. Kransdorf MJ. Malignant soft-tissue tumors in a large referral population: distribution of diagnoses by age, sex, and location. Am J Roentgenol. 1995;164:129–34.
2. Ries LAG, Smith MA, Gurney JG, et al. Cancer incidence and survival among children and adolescents: U.S. Surveillance, Epidemiology, and End Results (SEER) Program 1975–1995. Bethesda: National Cancer Institute, NIH Publication; 1999. NIH Pub.No. 99-4649.
3. Weiss SW, Goldblum JR, editors. Enzinger and Weiss’s soft tissue tumors. 5th ed. St Louis: Elsevier; 2008. p. 1161–82.
4. Frank SJ, Snearly W, Parsons T. Malignant tumours about the knee. Am J Knee Surg. 1988;1:257–66.
5. Spillane A, A’Hern R, Judson I, Fisher C, Meirion Thomas J. Synovial sarcoma: a clinicopathologic, staging and prognostic assessment. J Clin Oncol. 2000;18:3794–803.