Credits
| Author | Maria G. Essig, MS, ELS |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Specialist Medical Reviewer | Robert L. Cowie, MB, FCP(SA), MD, MSc, MFOM - Pulmonology |
| Last Updated | July 23, 2008 |
Author:Maria G. Essig, MS, ELS
Last Updated: 07/23/2008