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Frequencies of articles. By a journal, b type of time-to-event outcome, c research area and d median follow-up time. BMJ British Medical Journal, C/vasc cardiovascular disease, DFS/RFS disease-free or recurrence-free survival, HIV human immunodeficiency virus, ICU intensive care unit, JAMA Journal of the American Medical Association, NEJM New England Journal of Medicine, NR not reported, OS overall survival, PFS progression-free survival
