Jan O. Jansen, PhD1,2; Jemma Hudson, PhD1; Claire Cochran, MSc1; et alGraeme MacLennan, MSc1; Robbie Lendrum, MBChB3; Sam Sadek, MBBS4; Katie Gillies, PhD1; Seonaidh Cotton, PhD1; Charlotte Kennedy, MSc5; Dwayne Boyers, PhD5; Gillian Ferry, MSc1; Louisa Lawrie, PhD1; Mintu Nath, PhD6; Samantha Wileman, PhD1; Mark Forrest, BSc1; Karim Brohi, MBBS7; Tim Harris, MBBS3; Fiona Lecky, PhD8; Chris Moran, MD9; Jonathan J. Morrison, PhD10; John Norrie, MSc11; Alan Paterson, DPhil12; Nigel Tai, MS13; Nick Welch14; Marion K. Campbell, PhD1; and the UK-REBOA Study Group Author Affiliations Article Information JAMA. Published online October 12, 2023.