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Direct oral anticoagulant (DOAC) activity levels of all patients who had one or more measurements outside the 20th–80th percentile. The gray areas represent the values between the 20th and 80th percentiles (of the full‐dose DOACs) . The red lines represent patients with more than one outlier outside the 20th–80th range (of the full‐dose DOACs), the black lines represent patients with one outside the 20th–80th range (of the full‐dose DOACs). BID, twice a day; OD, once a day
