Marijuana-related Tweet (1 of 2) (IMAGE)

WashU Medicine

Marijuana-related Tweet (1 of 2)

Caption

Washington University researchers found that during an eight-month period in 2013, a marijuana-related Twitter account sent out more than 2,200 messages to some 1 million followers, 73 percent of whom were 19 years old or younger.

Credit

Weed Tweets @stillblazingtho

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