Coma is a medical mystery/thriller by Robin Cook. Third year medical student Susan Wheeler, along with four male medical school classmates, are assigned to Boston Memorial Hospital to begin learning first hand about surgery and patient care. An interesting thriller. The suspense built gradually from the very beginning and by the last few chapters was moving rapidly. As in any good suspense story, the author provides at least four conceivably potential perpetrators, yet the reader has no idea who the real culprit is until the very end, the same literary device found in nearly all suspense novels and Robin Cook pulls it off wonderfully well. I would recommend it to those who like thrillers.