1. Institute of Health Economics and Healthcare ManagementHelmholtz Zentrum München (GmbH) Neuherberg Germany
2. German Center for Diabetes Research (DZD) Neuherberg Germany
3. Department of Medical Informatics, Biometry and EpidemiologyUniversity of Munich Munich Germany
4. Institute of EpidemiologyHelmholtz Zentrum München, GmbH, German Research Center for Environmental Health Neuherberg Germany