Ernst, E A Use of charcoal to rapidly decrease depth of anesthesia while maintaining a closed circuit. [electronic resource] - Anesthesiology Oct 1982 - 343 p. digital Publication Type: Letter ISSN: 0003-3022 Standard No.: 10.1097/00000542-198210000-00025 doi Subjects--Topical Terms: AdsorptionAnesthesia, Inhalation--instrumentationCharcoalFiltration