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HSROC curves for pooled assays at a cutoff of 10 µg/g for patients with unstratified presenting symptoms, high-risk symptoms or low-risk symptoms, where studies were conducted in any setting (primary care, secondary care, both or unclear). Curves generated using only OC-Sensor data for Chapman 2021 study to avoid double counting. 95% confidence region for each summary estimate is represented by the dashed-line curve.
