1. Lymphocyte Cell Biology SectionNIAMSNational Institutes of HealthBethesdaMaryland20892USA
2. INSERM U255Curie InstituteParisFrance
3. Pediatric and Reproductive Endocrinology BranchNICHDNational Institutes of HealthBethesdaMaryland20892USA
4. Department of GastroenterologyErasme HospitalBrusselsBelgium
5. Department of EndocrinologyUniversity of Düsseldorf40225DüsseldorfGermany
6. Department of PediatricsUniversity of Leipzig04103Leipzig