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Flow Diagram of this study. eICU-CRD, eICU Collaborative Research Database; ICU, intensive care unit; CVD, cardiovascular disease; RF, renal failure; GWAS, genome-wide association study; eGFR, estimated glomerular filtration rate; CKD, chronic kidney disease. (A) Flow chart of the respective analysis; (B) Flow chart of the Mendelian randomization analysis.
