Guido Kliemann

Childhood onset inflammatory bowel disease: predictors of delayed diagnosis from the CEDATA German-language pediatric inflammatory bowel disease registry.

P. Rzehak, S. Koletzko, R. Behrens, 2011, The Journal of pediatrics.

Re-treatment of Children With Chronic Hepatitis C Who Did Not Respond to Interferon-α Treatment

A. Enninger, R. Behrens, S. Wirth, 2010, Journal of pediatric gastroenterology and nutrition.