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  1. Article

    Open Access

    Excretion of urinary histamine and N-tele methylhistamine in patients with gastrointestinal food allergy compared to non-allergic controls during an unrestricted diet and a hypoallergenic diet

    Patients with gastrointestinal food allergy are characterised by increased production of mast cell derived mediators upon allergen contact and present often with unspecific symptoms. The aim of this study was ...

    Martin Raithel, Alexander Hagel, Heinz Albrecht, Yurdaguel Zopf… in BMC Gastroenterology (2015)

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  2. No Access

    Article

    Over-the-Scope Clip Application Yields a High Rate of Closure in Gastrointestinal Perforations and May Reduce Emergency Surgery

    Perforation of the gastrointestinal tract may cause various complications and may require emergency surgery, even in patients with significant comorbidities.

    Alexander Fritzkarl Hagel, Andreas Naegel… in Journal of Gastrointestinal Surgery (2012)