title: Are all hypotheses generated before data analysis prospective?
authors.forename: Walter J
authors.initials: WJ
authors.lastname: Urba
authors.forename: W Gregory
authors.initials: WG
authors.lastname: Alvord
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D017326:Clinical Trials, Phase III as Topic; D003257:Consumer Product Safety; D004357:Drug Synergism; D006632:Histamine / Q000008:administration & dosage; D006801:Humans; D007376:Interleukin-2 / Q000008:administration & dosage; D008545:Melanoma / Q000188:drug therapy* / Q000401:mortality; D009362:Neoplasm Metastasis; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D012878:Skin Neoplasms / Q000188:drug therapy* / Q000401:mortality; D015996:Survival Rate; D016896:Treatment Outcome
chemical_list: D007376:Interleukin-2; D006632:Histamine