T-helper and naive T-cell reconstitution. (A) CD4⁺ T-cell reconstitution by age at HSCT. (B) CD4⁺CD45RA⁺ T-cell reconstitution by age at HSCT. (C) CD4⁺ T-cell reconstitution by the presence of infections. (D) CD4⁺ T-cell reconstitution by the presence of autoimmunity. (E) CD4⁺CD45RA⁺ T-cell reconstitution by the presence of infections. (F) CD4⁺CD45RA⁺ T-cell reconstitution by the presence of autoimmunity. (G) CD4⁺CD45RA⁺ T-cell reconstitution by the presence of organ damage.