NCI mounts campaign to increase number of patients in clinical trials.
D002986:Clinical Trials as Topic; D003110:Colonic Neoplasms / Q000628:therapy; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000628:therapy; D009316:National Institutes of Health (U.S.); D009369:Neoplasms / Q000628:therapy*; D012004:Rectal Neoplasms / Q000628:therapy; D014481:United States; D001749:Urinary Bladder Neoplasms / Q000628:therapy