Detailed assessment of nutritional status and eating patterns in children with gastrointestinal diseases attending an outpatients clinic and contemporary healthy controls by Tsiountsioura, M, Wong, J, Upton, J, McIntyre, K, Dimakou, D, Buchanan, E, Cardigan, T, Flynn, D, Bishop, J, Russell, R, Barclay, A, McGrogan, P, Edwards, C, Gerasimidis, K