Predictive Impact of Diffuse Positivity for TTF-1 Expression in Patients Treated With Platinum-Doublet Chemotherapy Plus Immune Checkpoint Inhibitors for Advanced Nonsquamous NSCLC oleh Yuto Terashima, MD, Masaru Matsumoto, MD, PhD, Hiroki Iida, MD, Sae Takashima, MD, Aya Fukuizumi, MD, PhD, Susumu Takeuchi, MD, PhD, Akihiko Miyanaga, MD, PhD, Yasuhiro Terasaki, MD, PhD, Kazuo Kasahara, MD, PhD, Masahiro Seike, MD, PhD