Absence of functional fetal regulatory T cells in humans causes in utero organ-specific autoimmunity. - Allenspach EJ; Finn LS; Rendi MH; Eken A; Singh AK; Oukka M; Taylor SD; Altman MC; Fligner CL; Ochs HD; Rawlings DJ; Torgerson TR (The Journal of allergy and clinical immunology, 2017)