[1] FAC PHARM MONTPELLIER, INSERM, U300, LPM2, F-34060 MONTPELLIER, FRANCE
[2] CHILDRENS HOSP MED CTR, DEPT CARDIOL, BOSTON, MA 02115 USA
[3] MAX VON PETTENKOFER INST, ABT PROF WOLF, D-8000 Munich 2, GERMANY
[4] ST ELOI HOP, DEPT CARDIOL, F-34059 MONTPELLIER, FRANCE