Author information:
(1)From the Section of Molecular Development of the Immune System, Laboratory of 
Immunology (A.O., W.A.C., A.R.M., H.F.M., M.J.L.), the Clinical Genomics Program 
(A.O., W.A.C., A.R.M., Y.Z., H.F.M., H.C.S., M.J.L.), and the Human 
Immunological Diseases Section, Laboratory of Host Defenses (Y.Z., H.C.S.), 
National Institute of Allergy and Infectious Diseases, the Laboratory of 
Pathology, National Cancer Institute (S.P.), and Radiology and Imaging Sciences, 
Clinical Center (L.R.F.), National Institutes of Health, Bethesda, MD; the 
Department of Pediatrics, Division of Allergy and Immunology (A.O., E.K.-A., 
S.B., A. Kiykim, I.O.), and the Department of Pediatrics, Division of Pediatric 
Gastroenterology, Hepatology, and Nutrition (E.T., D.E.), Marmara University, 
Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases (A.O., 
E.K.-A., S.B., A. Kiykim, I.O.), and the Department of Pediatrics, Division of 
Pediatric Gastroenterology, Hepatology, and Nutrition, İstanbul University 
Cerrahpaşa Faculty of Medicine (Ö.F.B., T.E.), Istanbul, and the Department of 
Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, 
Gazi University (B.D., S.S.), the Department of Pediatric Gastroenterology, 
Hepatology, and Nutrition, Faculty of Medicine, Başkent University (F.O., Z.B., 
M.G.), and the Pediatric Gastroenterology Clinic, Dr. Sami Ulus Children's 
Hospital (A.U.A.), Ankara - all in Turkey; Ludwig Boltzmann Institute for Rare 
and Undiagnosed Diseases and the CeMM Research Center for Molecular Medicine of 
the Austrian Academy of Sciences (R.C.A., C.D.C., N.K.S., A. Krolo, K.B.), 
Clinical Institute of Pathology (R.K.), the Department of Pediatrics and 
Adolescent Medicine (K.B.), and St. Anna Kinderspital and Children's Cancer 
Research Institute, Department of Pediatrics (K.B.), Medical University of 
Vienna, Vienna; Merck Research Laboratories (J.J.M.), and the Division of 
Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Harvard 
Medical School (S.B.S.), Boston; and the Department of Pediatric 
Gastroenterology, University Medical Center-Wilhelmina Children's Hospital 
(R.H.J.H.), and the Department of Rheumatology and Clinical Immunology, 
University Medical Center (H.L.L.), Utrecht, the Netherlands.