However, we did not screen FGFR1 gene amplification in AC samples due to its reported scarcity (0%‐3%) (Table S5).21, 26, 27, 38 FISH analysis revealed 23% (n = 37) of SQCLC with amplified FGFR1 gene going along with previous reports (15%‐22%).17, 21, 39 In SCLC, 8% (n = 3) were amplified which was also comparable to literature (5%‐8.7%).18, 38. Here, FGFR1 is linked to small cell lung carcinoma.