A series of new studies is putting a spotlight on the growing use of cannabis among people with cancer and some of the trend’s downstream effects. But research has lagged on whether and which cannabis products are a safe or effective way to help with cancer-related symptoms and treatment-related side effects. Among the most-pressing challenges caused by this scientific evidence deficit, several of the studies found, is that oncologists and other cancer care providers feel ill-equipped to talk with their patients about medical cannabis.  Read the article here.