Detection of signature double-negative T cells is a predictive marker to identify autoimmune lymphoproliferative syndrome associated with FAS loss of function. - Eisenhauer N; Miano M; Naumann-Bartsch N; Leyh J; Dell'Orso G; Aigner M; Fecker G; Hinze C; Wittkowski H; Bruns H; Zierk J; Metzler M; et al. (American journal of hematology, 2024)