Faecal Volatile Organic Compound Analysis in De Novo Paediatric Inflammatory Bowel Disease by Gas Chromatography–Ion Mobility Spectrometry: A Case–Control Study oleh Eva Vermeer, Jasmijn Z. Jagt, Trenton K. Stewart, James A. Covington, Eduard A. Struys, Robert de Jonge, Nanne K. H. de Boer, Tim G. J. de Meij