title: TCNU in colorectal cancer. How many patients are needed to demonstrate that a drug doesn't work?
authors.forename: J
authors.initials: J
authors.lastname: Wils
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D015179:Colorectal Neoplasms / Q000188:drug therapy*; D006801:Humans; D009607:Nitrosourea Compounds / Q000627:therapeutic use*; D015996:Survival Rate; D013654:Taurine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D017211:Treatment Failure
chemical_list: D000970:Antineoplastic Agents; D009607:Nitrosourea Compounds; D013654:Taurine; C052991:1-(2-chloroethyl)-3-(2-(dimethylaminosulfonyl)ethyl)-1-nitrosourea