title: Progression-free survival: does a correlation with survival justify its role as a surrogate clinical endpoint?
authors: Department of Biostatistics and Bioinformatics, Duke University, Alliance Statistical and Data Center, Duke University, Durham, North Carolina.
authors: Susan
authors: S
authors: Halabi
authors: Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio.
authors: Brian I
authors: BI
authors: Rini
authors: Department of Cancer Medicine, Institut Gustave Roussy, Villejuif, France.
authors: Bernard
authors: B
authors: Escudier
authors: Department of Medicine, University of Chicago Medical Center, Chicago, Illinois.
authors: Walter M
authors: WM
authors: Stadler
authors: Department of Urology, University of California at San Francisco, San Francisco, California.
authors: Eric J
authors: EJ
authors: Small
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002292:Carcinoma, Renal Cell / Q000188:drug therapy*; D005260:Female; D006801:Humans; D016898:Interferon-alpha / Q000627:therapeutic use*; D007680:Kidney Neoplasms / Q000188:drug therapy*; D008297:Male
chemical_list: D016898:Interferon-alpha