1. Schreiber P. Safety guidelines for anesthesia systems. Telford, PA: North American Drager, Inc, 1984
2. Dorsch JA, Dorsch SE. Understanding anesthesia equipment: construction, care, and complications. Baltimore: Williams & Wilkins, 1984:151–156, 289–296
3. American National Standards Institute. Minimum performance and safety requirements for components and systems of continuous flow anesthesia machines for human use. New York: American National Standards Institute, Inc, 1979. ANSI Z-79.8.
4. Eichhorn JH, Cooper JB, Cullen DJ, et al. Standards for patient monitoring during anesthesia at Harvard Medical School. JAMA 1986;256:1017–1020
5. American Society of Anesthesiologists, House of Delegates. Standards for basic intraoperative monitoring. Park Ridge, IL: American Society of Anesthesiologists, 1986