Marijuana is the most frequently used illegal drug in the United States.
Marijuana smoking affects the brain and leads to impaired short-term memory, perception, judgment, and motor skills.
Printed 1995, Revised November, 1998, Reprinted April, ...
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Marijuana smoking affects the brain and leads to impaired short-term memory, perception, judgment, and motor skills.
Printed 1995, Revised November, 1998, Reprinted April, ...
More Information