title: Presidential address.
mesh_terms: D003365:Costs and Cost Analysis; D004724:Endoscopy / Q000191:economics; D005762:Gastroenterology / Q000639:trends; D006296:Health Services / Q000191:economics; D006801:Humans; D008318:Malpractice / Q000191:economics; D012955:Societies, Medical; D014481:United States