Comparative epidemiology of initial drug opportunities and transitions to first use: Marijuana, cocaine, hallucinogens and heroin

Publication Authors

Van Etten, Michelle L.Anthony, James C.

Publisher Information

Type: 
Journal Article
Year: 
1999
Date Note: 
Apr 1, 1999
ISBN: 
0376-8716
Volume: 
54
Issue: 
2
Page Span: 
117-125