1. Aviado DM, (1975) Regulation of bronchomotor tone during anesthesia. Anesthesiology 42:68
2. Baldwin EF, de et al. (1948) Pulmonary insufficiency, I, II, III Physiological Classification, clinical methods of analysis, Standard values in normal subjects. Medicine (Baltimore) 27:243
3. Benumuf JL, (1981) Respiratory physiology and respiratory function during anesthesia. In: Miller RD (ed) Anesthesia. Churchill Livingstone, New York, pp 681–725
4. Corssen G, et al. (1972) Ketamine in anesthetic management of asthmatic patients. Anest Anaig 51:588
5. Couture J, et al. (1970) Airway closur,e in normal, obese, and anesthetized supine subjects. Fed Proc 29:269