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International multicentre observational study to evaluate the association between perioperative red blood cell transfusions and 1-year mortality after major cancer surgery (ARCA-1): study design, statistical analysis plan and study protocol.
Cata J, Ramirez M, Forget P, Chen LL, Diaz-Cambronero O, Chen W, Warner MA, Knopfelmacher Couchonal A, Pelosi P, Cuellar L, Corrales G, Romero C, Lobo F, Saager L, Castro Tapia J, Kiberenge R, Feng L, Serpa Neto A. Cata J, et al. BMJ Open. 2021 Mar 18;11(3):e043453. doi: 10.1136/bmjopen-2020-043453. BMJ Open. 2021. PMID: 33737431 Free PMC article.