EGFR and atrial fibrillation: At baseline, the median EGFR driver AF (5.7%, range = 0.2–58.5%) was significantly higher than T790M AF (2.2%, range = 0.1–45.2%; P < 0.001), while significantly lower than the median MSAF (9.73%, range = 0.8–60.6%; P < 0.001) (Fig. 1a).