1. Department of Clinical Sciences Malmö, Pediatrics, Lund University, 221 00 Lund, Sweden
2. Department of Nutrition, University of California, Davis, CA 95616, USA
3. Department of Clinical Sciences, Pediatrics, Umeå University, 901 87 Umeå, Sweden
4. Arla Foods Ingredients Group P/S, 8260 Viby, Denmark