Department II of Internal Medicine,University of Cologne, Cologne, Germany
1st Department of Medicine, Cologne University Hospital, Cologne, Germany
University hospital of Cologne, Department of Neonatology, Cologne, Northrhine-westfalia, Germany
University Hospital of Cologne, Cologne, Northrhine-westfalia, Germany
University Hospital of Cologne, Cologne, Germany
Klinikum Leverkusen, Leverkusen, NRW, Germany
Universitätsklinikum Würzburg, Würzburg, Bayern, Germany
Universitätsklinikum Aachen, Aachen, NRW, Germany
Department II of Internal Medicine, Center for Molecular Medicine Cologne (CMMC), University Hospital of Cologne, Cologne, Germany
University Hospital of Cologne, Cologne, Germany
Universitätsklinikum Freiburg, Freiburg, Baden-Würtemberg, Germany
Klinikum Stuttgart - Katharienenhospital, Stuttgart, Baden-Württemberg, Germany
Universitätsklinikum Hamburg-Eppendorf, Hamburg, Hamurg, Germany