Diagnostic delay and clinical outcomes of paroxysmal nocturnal hemoglobinuria: a retrospective cohort study using Japanese claims data - Yasutaka Ueda; Tatsuya Kawaguchi; Takayuki Ikezoe; Akihiko Shimono; Hideo Hayashi; Michihiro Uchiyama; Jun-ichi Nishimura; Kaichi Nishiwaki (International Journal of Hematology, 2026)