Influence of loneliness and social isolation on the diagnosis and treatment of Japanese patients with advanced lung cancer: a prospective cohort study

Tomoyasu Takemura, Yuki Kataoka, Chigusa Shirakawa, Koya Okazaki, Azusa Sakurai, Takuma Imakita, Shunkichi Ikegaki, Hirotaka Matsumoto, Emiko Saito, Hirohito Takata, Sawako Kaku, Nobuko Wada, Mariko Shinomiya, Takehiro Otoshi, Masatoshi Shimada, Junichi Nikaido, Reika Iki, Katsuya Hirano, Tomoyuki Hirai, Kazuo Endo, Masataka Hirabayashi, Toru Naganuma