King 5 HealthLink July 27, 2014  by Liz Szabo USA Today

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.

http://www.king5.com/health/Marijuana-risks-benefits-268795141.html