FGFR1 and squamous cell carcinoma: Although our results showed that functional FGFR1 signaling is not significantly changed in our lung adenocarcinoma cell system, FGFR1 suppression by miR-133a is detected in the reporter assay (Figure 2B), and miR-133a-suppressed FGFR1 mRNA levels have been detected in four squamous cell carcinomas (Figure S2B).