The biggest reason Teladoc can stay on top in telehealth

So far, Teladoc Health has been the biggest winner in the growth of telemedicine. But it's an industry that's expected to grow significantly in the years ahead, and competition is likely to be stiff, including recent IPO Amwell, and potentially competition from companies that aren't known for being big in telehealth but have technologies that could make for a good fit, like Zoom Video Communications.