Exploring the mechanism of action of abemaciclib in breast cancer through circulating chromatin fragments. - Takada M; Gunarathna S; Nguyen R; Yu M; Bonnet P; Yamada H; Nagashima T; Fujimoto H; Sakakibara J; Yamamoto H; Iida M; Kawaguchi T; et al. (Communications medicine, 2026)