1. Cedars-Sinai Medical Center and The David Geffen School of Medicine at University of California, Los Angeles (R.A.), Los Angeles, California 90048
2. University of Palermo (E.C.), 90128 Palermo, Italy
3. Lille University Hospital (D.D.), 59037 Lille, France
4. University of Athens Medical School (E.D.-K.), GR-157 84 Athens, Greece
5. Hospital Ramon y Cajal and University of Alcalá (H.F.E.-M.), 28801 Madrid, Spain
6. Mount Sinai School of Medicine (W.F.), New York, New York 10029
7. University of Essen (O.E.J.), 45131 Essen, Germany
8. Pennsylvania State University School of Medicine (R.S.L.), Hershey, Pennsylvania 17033
9. University of Adelaide (R.J.N.), Woodville, South Australia 5005, Australia
10. Pfizer Global Research and Development (A.E.T.), Groton, Connecticut 06340
11. Children’s Hospital of Pittsburgh (S.F.W.), Pittsburgh, Pennsylvania 15213