1. Stryer L: Portrait of an allosterile protein. In: Biochemistry, 4th ed. New York: W.H. Freeman, 1995:154–75.
2. Disorders of hemoglobin;Bunn,1991
3. Methemoglobinemia caused by benzocaine topical spray;Cooper;South Med J,1997
4. Monitoring the anesthetized patient;Hugh,1992
5. Physics applied to anesthesia;Barker,1992