Liz Szabo, USA TODAY 6 a.m. EDT July 27, 2014
Doctors say they’re increasingly fielding questions about the safety of marijuana, as use of the drug rises and more communities consider legalizing it. Colorado and Washington state have legalized recreational marijuana, and medical use is allowed in 21 states and Washington, D.C.
USA TODAY’s Liz Szabo talked to experts about what scientists know and don’t know about marijuana’s risks and benefits.
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