1. Department of Laboratory Medicine, and Yale Flow Cytometry Core Facility, Yale University School of Medicine, New Haven, Connecticut, USA
2. Department of Pediatrics, and Yale Flow Cytometry Core Facility, Yale University School of Medicine, New Haven, Connecticut, USA
3. European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
4. Department of Immunobiology, Yale Flow Cytometry Core Facility, Yale University School of Medicine, New Haven, Connecticut, USA
5. Stem Cell Program, Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA