[1] UNIV TUBINGEN, CHILDRENS HOSP, W-7400 TUBINGEN 1, GERMANY
[2] UNIV LYON 1, HOP EDOUARD HERRIOT, FAC MED ALEXIS CARREL, F-69365 LYON 2, FRANCE
[3] UNIV TUBINGEN, KINDER KLIN, W-7400 TUBINGEN 1, GERMANY
[4] STANFORD UNIV, MED CTR, SCH MED, STANFORD, CA 94305 USA
[5] ST BARTHOLOMEWS HOSP, DIV PAEDIAT ENDOCRINOL, LONDON EC1A 7BE, ENGLAND
[6] UNIV N CAROLINA, DEPT PEDIAT, CHAPEL HILL, NC 27599 USA