Does the 1:1:1 Transfusion Ratio Mortality Benefit Hold True in Ultra-massive Transfusion? A Study From the Product (Patient Related Outcomes During Ultra-massive transfusion multi-Center Trial) Consortium. - Meyer CH; Grady Z; Smith RN; Moran TP; Rowh M; Zhang A; Harfouche MN; Greiffenstein P; Trinh S; Inaba K; Nekooei N; Filiberto DM; et al. (The American surgeon, 2025)