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Specificity curves of BOS 0-p by each criterion over time in single-lung transplant recipients. The specificity curve as a function of time, t, is defined as the probability of not meeting BOS 0-p criteria within the previous t units of time from the last pulmonary function test among patients who were not diagnosed with BOS. The time on the horizontal axis is the length of time before the last observed pulmonary function test.
