14
Participants
Start Date
November 30, 1997
Primary Completion Date
October 31, 1998
Study Completion Date
October 31, 1998
30% Nitrous oxide
Placebo
No drug (100% oxygen)
0.2% sevoflurane
0.4% sevoflurane
0.6% sevoflurane
University of Chicago, Anesthesia & Critical Care, Chicago
National Institute on Drug Abuse (NIDA)
NIH
University of Chicago
OTHER