Arbejdede dernæst en kort periode inden for medicinalindustrien 1986- 1987, indtil han vendte tilbage til en klinisk stilling ved Dronning Fabiolas universitetshospital for børn i Bruxelles som leder af afdelingen for ernæring og farmakodynamik, en stilling, han stadig beklæder.
He moved briefly to the pharmaceutical industry from 1 986 to 1987, before returning to clinical work at the Queen Fabiola Children’s University Hospital in Brussels as head of the nutrition and pharmacodynamics unit, a post he continues to hold today.