20
Participants
Start Date
November 30, 1996
Primary Completion Date
February 28, 1999
Study Completion Date
February 28, 1999
30% Nitrous oxide
0.4% Sevoflurane
0.2% sevoflurane
Placebo
University of Chicago, Anesthesia & Critical Care, Chicago
National Institute on Drug Abuse (NIDA)
NIH
University of Chicago
OTHER