"Engagement ring" image conveys regrettable outcome for aged patients with non‐small cell lung cancer. Issue 7 (17th May 2018) - Yamane, Hiromichi; Nishie, Hiroyuki; Ochi, Nobuaki; Yamagishi, Tomoko; Nakagawa, Nozomu; Nagasaki, Yasunari; Nakanishi, Hidekazu; Takigawa, Nagio