title: A war of attrition.
mesh_terms: D035843:Biomedical Research / Q000191:economics / Q000639:trends; D002017:Budgets / Q000706:statistics & numerical data; D005380:Financing, Government / Q000191:economics; D006801:Humans; D009316:National Institutes of Health (U.S.); D009369:Neoplasms / Q000191:economics / Q000517:prevention & control* / Q000628:therapy*; D012109:Research Support as Topic / Q000191:economics / Q000639:trends; D014481:United States