Medicine is "like working in an auto repair shop," writes veteran internist Brendan Reilly. "You listen to what the car owner says; you ask him some questions; you listen carefully to his answers; and then you look under the hood. People today think medicine is all about technology -- DNA tests and MRI scans and robotic surgery. But it isn't. There's an age-old, tried-and-true method to clinical medicine, and there's nothing mysterious or high-tech about it. It's grunt work.... If you shortcut the grunt work you'll screw up the job."