Figure 4.
Number of inhalations of hippy crack that would be taken in one sitting if one has never taken hippy crack (n = 101 responses).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.