From the Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht (J.A.I., Y.T.v.d.S., D.E.G., W.A.v.S.); Nutrition and Consumer Safety Division, RIVM, Bilthoven (D.K.); Division of Nutrition, Wageningen University Research Center, Wageningen (D.K., W.A.v.S.); and Public Health Division, RIVM, Bilthoven (H.C.B.), the Netherlands. (At 2005-08-09)
