10
Participants
Start Date
September 30, 1993
Primary Completion Date
June 30, 1995
Study Completion Date
June 30, 1995
20% N2O
20% inhaled N2O
30% N2O
30% inhaled N2O
40% N2O
40% inhaled N2O
University of Chicago, Anesthesia & Critical Care, Chicago
National Institute on Drug Abuse (NIDA)
NIH
University of Chicago
OTHER