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Death and organ transplantation, 2014 ivacaftor and comparator cohorts, (A) US CFFPR and (B) UK CFR. *Fisher’s exact p values are shown when the expected value is <5 in at least one cell of the contingency table. CFFPR, Cystic Fibrosis Foundation Patient Registry; CFR, Cystic Fibrosis Registry; NR, not reported; RR, relative risk.
