Dr. John Fildes, a trauma surgeon and University Medical Center’s trauma director, opens the door as he leads a tour of UMC’s Trauma Center on Thursday Jan. 18, 2017, in Las Vegas. (Bizuayehu Tesf …

Dr. John Fildes, a trauma surgeon and University Medical Center’s trauma director, opens the door as he leads a tour of UMC’s Trauma Center on Thursday Jan. 18, 2017, in Las Vegas. (Bizuayehu Tesfaye/Las Vegas Review-Journal) @bizutesfaye