Within a matter of a few decades, medical marijuana has gone from a pipe dream to mainstream. Loosening social and official attitudes about the use of cannabis for medicinal, as well as recreational, purposes has created a rapidly expanding multibillion-dollar legal marijuana industry.

Dispensaries across 33 states, including Maryland and Washington, D.C., provide medical cannabis to patients suffering from a variety of ailments, including glaucoma, chronic pain of different types, anxiety, nausea and epilepsy.

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