1. Baystate Children’s Hospital, Tufts University School of Medicine (E.O.R.), Springfield, Massachusetts 01199
2. Department of Child Health, Royal Manchester Children’s Hospital (D.A.P.), Manchester M27 4HA, United Kingdom
3. Pfizer (P.W.), S-19190 Stockholm, Sweden
4. Pediatric Growth Research Center, University of Gothenburg (K.A.-W.), S40439 Gothenburg, Sweden
5. Pediatric Endocrinology Section, University Children’s Hospital (M.B.R.), Tubingen D-72076, Germany