1. Surveillance, Epidemiology, and End Results (SEER) Program. Limited-Use Data (1973–2005), National Cancer Institute, DCCPS, Surveillance Research Program, Cancer Statistics Branch. Released April 2008, based on the November 2007 submission. Available at: www.seer.cancer.gov.
2. International Classification of Diseases for Oncology;Fritz,2000
3. Recursive Partitioning in the Health Sciences;Zhang,1999
4. AJCC Cancer Staging Manual;Greene,2002
5. Total number of resected lymph nodes predicts survival in esophageal cancer;Altorki;Ann Surg,2008