1. CarbExplore Research BV, Zernikepark 12, 9747 AN Groningen, The Netherlands
2. Ausnutria BV, Dokter van Deenweg 150, 8025 BM Zwolle, The Netherlands
3. Sector Human Nutrition and Health, Department of Laboratory Medicine, University Medical Center Groningen (UMCG), Hanzeplein 1, 9713 GZ Groningen, The Netherlands