Deletion mutations of the <i>ABL1</i> gene in Philadelphia chromosome-positive acute lymphoblastic leukemia: high prevalence with limited clinical impact Authors Aya Nishida Naoyuki Uchida (ORCID: https://orcid.org/0000-0001-5952-5926) Otoya Watanabe Kosei Kageyama (ORCID: https://orcid.org/0000-0003-1826-3127) Atsushi Wake Shinsuke Takagi Yuki Taya Hirofumi Takano Kyosuke Yamaguchi (ORCID: https://orcid.org/0000-0002-8238-8672) Yuki Asano‐Mori Hisashi Yamamoto (ORCID: https://orcid.org/0000-0003-1687-7029) Go Yamamoto (ORCID: https://orcid.org/0000-0001-9229-2976) Daisuke Kaji (ORCID: https://orcid.org/0000-0003-1941-8207) Kazuya Ishiwata Kana Kato Shuichi Taniguchi Institutions Institute for Medical Research (AR) Toranomon Hospital (JP) Explore the Global Research Space Interactive Map