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.
Number of publications in PubMed between 1960 and 2014 related to ‘cannabis’ research. The data shows the exponential increase in research studies over recent decades that coincides with changes in the legalization status (starting ~1996) and debates of recreational and medical marijuana use. The drop in publications in the 1970s marks changes in state laws and local regulations banning possession or sale of cannabis and cannabis becoming a Schedule I drug (*).
