1. Department of Nutrition, University of Brasilia, Brasilia DF 70910-900, Brazil
2. School of Health Care Studies, Hanze University of Applied Sciences, Groningen 9747 AS, The Netherlands
3. Population Research Centre, University of Groningen, Groningen 9747 AS, The Netherlands
4. Childhood Nutrition Research Centre, UCL Institute of Child Health, London WC1N 1EH, UK
5. Medical Research Council Biostatistics Unit Hub in Trials Methodology Research, Institute of Public Health, Cambridge CB2 0SR, UK
6. MRC Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, CB1 9NL, UK