Healthcare resources for patients with IEIs in the Asia-Pacific region. The results of the questionnaire survey are summarized, with color codes and legends provided in the lower panel. BM, bone marrow; CB, cord blood; GVHD, graft-versus-host disease; HCT, hematopoietic cell transplantation; IEI, inborn error of immunity; IgG, immunoglobulin G; IgRT, immunoglobulin replacement therapy; IVIG, intravenous immunoglobulin; KRECs, kappa-deleting recombination excision circles; NBS, newborn screening; PBSC, peripheral blood stem cell; PT-Cy, posttransplantation cyclophosphamide; SCID, severe combined immunodeficiency; SCIG, subcutaneous immunoglobulin; TRECs, T-cell receptor excision circles; WES, whole-exome sequencing; XLA, X-linked agammaglobulinemia.