Authors: de Jong, N Paw, MJMCA de Groot, LCPGM Rutten, RAM Swinkels, DW Kok, FJ van STaveren, WA

Citation: N. De Jong et al., Nutrient-dense foods and exercise in frail elderly: effects on B vitamins,homocysteine, methylmalonic acid, and neuropsychological functioning, AM J CLIN N, 73(2), 2001, pp. 338-346