When to say "I'm cured" -- Guess what? You're on the calcification list -- How the "sand in our motor oil" plugs us -- The nano detectives -- Challengiing the definition of life -- Seeds of destruction? -- The entrepreneurial practitioner -- How do I know if I have them? -- Ungumming our machinery -- Does it work? -- Caution : It man not be fore everybody -- Who pays as the patient revolution unfolds? -- What we know and what we don't.