FGFR1 and lung cancer: Similarly, a previously published German study had identified frequent and focal FGFR1 amplification in squamous NSCLC but not other histologic subtypes of lung cancer 16, while Japanese researchers have since reported a significantly higher rate of increased FGFR1 copy number in surgically resected squamous versus nonsquamous NSCLC (41.5% vs. 14.3%; P = 0.0066) 17.