1. Guidelines for teaching pain control and sedation to dentists and dental students,2007
2. Nitrous oxide in the dental office;J Am Dent Assoc,1997
3. An objective measure of recovery;Trieger;Anesth Prog,1969
4. Nitrous oxide: a study of physiological and psychological effects;Trieger;J Am Dent Assoc,1971
5. Measuring recovery from anesthesia: a simple test;Newman;Anesth Analg,1969