dr. john holcombe. thanks for being on the show again. >> sanjay, it's nice to hear from you again. >> we've been reporting on this forle some time, as you know, doctor. as a starting point, can you talk about some of the things that have changed over the last ten years, what we're starting to learn from the battlefield and apply back home? >> right. it's a great question. you know, i think you have to divide this into different areas. i think of advances in the prehospital area, advances in the hospital, advances from a systems point of view, working across the entire battlefield and then obviously advances from a research point of view and how those intermingle with the civilian community. >> right. if you think about, for example, let's take prehospital as a starting point. the way that a patient is assessed in the field at the time of trauma, what -- are there some examples you can share, what we learned on the battlefield and they're not doing at home? >> right. i think at the beginning of the war