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Survival of patients with stage IV renal cell carcinoma: (a) for patients first seen between 1994 and 2003 at Baylor University Medical Center and (b) for 670 patients treated between 1975 and 1996 at Memorial Sloan-Kettering Cancer Center. NSP indicates normal survival probability. Part b reprinted from reference 35 with permission from American Urological Association/Lippincott Williams & Wilkins.
