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Kaplan–Meier survival plot showing 30-day all-cause mortality in patients with Clostridium difficile; patient population analysed by ribotype (N=number of episodes for which mortality/survival data were available). P=0.02 (log rank test). Red line, RT220 (N=17); blue line, RT002 and RT015 (N=105); green line, all other ribotypes (N=341).
