Fig. 1.

Types of EGFR-TKI used and incidences of ILD. A After EGFR-TKI re-administration. B After third TKI use (including re-administration). First time use: when a TKI was used for the first time at that time. Second time use: when the same TKI was used as the initial one. Repeated use: when a previously used TKI was used again