401161 02: An assistant studies marijuana/cannabis leaves in the Maripharma Laboratory February 15, 2002 in Rotterdam, Netherlands. The Dutch government is the first in the world to officially approve the cultivation and sale of cannabis products to pharmacies for medical purposes. A test by the Free Universtity in Amsterdam is conducting tests with 20 Multiple Sclerosis (MS) patients who seem to be experiencing great benefits from the treatment with marijuana. (Photo by Michel Porro/Getty Images)