CPCapucine PïcardSep 1, 2026New paperautoPaperLeniolisib and rapamycin in activated PI3Kδ syndrome: Retrospective European Society for Immunodeficiencies registry–based analysisJournal of Allergy and Clinical Immunology · 2026 · Beatrice Rivalta, Martin Wolkewitz, Maaike Kusters et al.