After FCC HSCT, 9 patients (20%) developed autoimmune-like pathologies, including 4 patients with hemolytic anemia, 4 patients with pure red cell aplasia (1 of whom also had immune thrombocytopenia and 1 who had thyroiditis), and 1 patient with probable immune-mediated neutropenia that responded to granulocyte colony-stimulating factor (Supplementary Table S1). Here, CSF3 is linked to pure red-cell aplasia.