19
Participants
Start Date
September 30, 1995
Primary Completion Date
April 30, 1997
Study Completion Date
April 30, 1997
0% N2O and 10% N2O
0% N2O and 20% N2O
0% N2O and 30% N2O
0% N2O and 40% N2O
University of Chicago, Anesthesia & Critical Care, Chicago
National Institute on Drug Abuse (NIDA)
NIH
University of Chicago
OTHER