Michigan could become the first state to allow medical marijuana for children with severe autism.

The Michigan Medical Marijuana Review Panel voted 4-2 on Friday to recommend autism as a condition that qualifies for marijuana. The recommendation now goes to the director of the Department of Licensing and Regulatory Affairs, who makes the final decision. Supporters say oil extracted from marijuana has been effective in controlling extreme physical behavior by kids with severe autism. But critics say there's still not enough research.