Antineoplastic Agents/therapeutic use; Neoplasms/drug therapy; Alkaloids/therapeutic use; Animals; Azacitidine/therapeutic use; Biphenyl Compounds/therapeutic use; Chrysenes/therapeutic use; Deoxycytidine/analogs & derivatives; Deoxycytidine/therapeutic use; Echinomycin/therapeutic use; Epirubicin/therapeutic use; Etanidazole; Flavonoids/therapeutic use; Guanidines/therapeutic use; Humans; Idarubicin/therapeutic use; Menogaril; Mitoguazone/therapeutic use; Nitroimidazoles/therapeutic use; Nogalamycin/analogs & derivatives; Nogalamycin/therapeutic use; Organoplatinum Compounds/therapeutic use; Paclitaxel; Pentostatin/therapeutic use; Polymers/therapeutic use; Propylene Glycols/therapeutic use; Ribavirin/analogs & derivatives; Ribavirin/therapeutic use; Sulfonylurea Compounds/therapeutic use; Trimetrexate/therapeutic use; Vidarabine Phosphate/analogs & derivatives; Vidarabine Phosphate/therapeutic use; Gemcitabine