CLINICAL TRIALS AND OBSERVATIONS e-Blood Revised diagnostic criteria and classification for the autoimmune lymphoproliferative syndrome (ALPS): report from the 2009 NIH International Workshop

1Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD; 2Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, OH; 3Interdisciplinary Research Centre of Autoimmune Diseases, and University of Eastern Piedmont, Novara, Italy; 4Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, and 5Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD; 6Inserm U768, Université Paris Descartes, Paris, France; 7Immunoregulation Unit, Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, and 8Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD; 9Division of Hematology and Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, PA; and 10ALPS Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD