[1] Vrije Univ Amsterdam, Med Ctr, Epidemiol & Biostat, Amsterdam, Netherlands
[2] Wageningen Univ & Res Ctr, Human Nutr, Wageningen, Netherlands
[3] Wageningen Univ & Res Ctr, Strateg Commun, Wageningen, Netherlands
[4] GGD North & East Gelderland, Warnsveld, Netherlands