Effect of extramedullary disease on allogeneic hematopoietic cell transplantation for pediatric acute myeloid leukemia: a nationwide retrospective study

Hirotoshi Sakaguchi, Takako Miyamura, Daisuke Tomizawa, Takashi Taga, Hiroyuki Ishida, Yasuhiro Okamoto, Katsuyoshi Koh, Tomoko Yokosuka, Nao Yoshida, Maho Sato, Maiko Noguchi, Keiko Okada, Tsukasa Hori, Masanobu Takeuchi, Yoshiyuki Kosaka, Masami Inoue, Yoshiko Hashii, Yoshiko Atsuta