A. V. D. Berg

Design of a randomised controlled trial on immune effects of acidic and neutral oligosaccharides in the nutrition of preterm infants: carrot study

W. Fetter, J. Twisk, H. Lafeber, 2008, BMC pediatrics.

University of Groningen The effect of enteral supplementation of a prebiotic mixture of non-human milk galacto-, fructo- and acidic oligosaccharides on intestinal permeability in preterm infants Westerbeek,

W. Fetter, H. Lafeber, R. M. Elburg, 2010 .

The effect of glutamine-enriched enteral nutrition on intestinal microflora in very low birth weight infants: a randomized controlled trial.

W. Fetter, J. Twisk, J. Knol, 2007, Clinical nutrition.

A Randomized Controlled Trial of Enteral Glutamine Supplementation in Very Low Birth Weight Infants: Plasma Amino Acid Concentrations

W. Fetter, J. Twisk, H. Lafeber, 2005, Journal of pediatric gastroenterology and nutrition.