Overcoming resistance by ALK compound mutation (I1171S + G1269A) after sequential treatment of multiple ALK inhibitors in non‐small cell lung cancer oleh Ken Takahashi, Yosuke Seto, Koutaroh Okada, Shinya Uematsu, Ken Uchibori, Mika Tsukahara, Tomoko Oh‐hara, Naoya Fujita, Noriko Yanagitani, Makoto Nishio, Kenichi Okubo, Ryohei Katayama