With research suggesting that many patients with cancer are using cannabis for medical purposes—and oncology teams tending to offer little guidance about its use—patients are often turning for advice to staff at cannabis dispensaries. A new study by researchers at Dana-Farber Cancer Institute suggests that despite a commitment by many dispensary workers to educate themselves about medical cannabis, dispensaries often prioritize sales skills over cannabis knowledge, and the level of on-the-job training at dispensaries is notably uneven.