Marijuana
By Anne Marie Helmenstine, Ph.D., About.com Guide
Photo of marijuana or cannabis leaves.
Dohduhdah, Wikipedia CommonsDrug Fact Sheets
©2009 About.com, a part of The New York Times Company.
All rights reserved.
By Anne Marie Helmenstine, Ph.D., About.com Guide
Photo of marijuana or cannabis leaves.
Dohduhdah, Wikipedia Commons©2009 About.com, a part of The New York Times Company.
All rights reserved.