1. TNO Nutrition and Food Research, Zeist, The Netherlands; University Medical Centre Utrecht, Department of Dermatology/Allergology, Utrecht, The Netherlands
2. Wageningen University, Centre for Protein Technology TNO–WU, Wageningen, The Netherlands
3. TNO Nutrition and Food Research, Zeist, The Netherlands
4. University of Nebraska, Food Allergy Research and Resource Program, Lincoln, NE