Risk of febrile neutropenia in very elderly patients aged ≥80 years receiving their first cycle of R‐CHOP regimen: a nationwide real‐world study in Japan. (3rd January 2022) - Matsuda, Kensuke; Jo, Taisuke; Shimura, Arika; Honda, Akira; Taoka, Kazuki; Masamoto, Yosuke; Matsui, Hiroki; Fushimi, Kiyohide; Yasunaga, Hideo; Kurokawa, Mineo