Is it appropriate to select patients for primary prophylactic use of pegfilgrastim based on the risk of febrile neutropenia? - Narui K; Ishikawa T; Takashima I; Kashiwabara K; Uemura Y; Kikawa Y; Taira N; Mukai H (Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2025)