 One super exciting thing that I'm studying a lot about is the interaction with immunotherapy and radiation. And very briefly, you know, my thoracic surgery friends and I kind of discussed this, what's better? If we have a single lung tumor, should we treat it with stereotactic radiation or should we remove it surgically? And my argument is if we treat it with radiation, another really interesting thing happens. The cells as they go through the process of apoptosis actually kind of lice open up the interior contents create antigens that are recognized by the immune system. And so then it can make the immune system kind of primed and then immunotherapy after a radi surgery may be able to affect the development of metastatic disease. And so and that's actually been shown in some studies.