1. Department of Epidemiology Erasmus MCErasmus University Medical Center Rotterdam the Netherlands
2. Institute for Community Medicine University Medicine Greifswald Greifswald Germany
3. Medical Library Erasmus MCErasmus University Medical Centre Rotterdam the Netherlands
4. Institute of Epidemiology Helmholtz Zentrum MünchenGerman Research Center for Environmental Health Neuherberg Germany
5. German Diabetes Center München‐Neuherberg Germany
6. Department of Gastroenterology and Hepatology Erasmus MCErasmus University Medical Center Rotterdam the Netherlands