Credits
| Author | Maria G. Essig, MS, ELS |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | Caroline S. Rhoads, MD - Internal Medicine |
| Specialist Medical Reviewer | Jan Ulfberg, MD, PhD - Sleep Disorders |
| Last Updated | July 13, 2007 |
Author:Maria G. Essig, MS, ELS
Last Updated: 07/13/2007