SEER Survival Monograph: Cancer Survival among Adults: U.S. SEER Program, 1988 – 2001, Patient and Tumor Characteristics. National Cancer Institute, SEER Program, NIH Pub. No. 07-6215, Bethesda, MD: NIH - Ries, L AG; Young, J L; Keel, G E; Eisner, M P; Lin, Y D; Horner, M J (2007)