4 Institute of Health Economics and Management, Ludwig-Maximilians-Universitaet Muenchen, Munich.
5 Helmholtz Zentrum Muenchen - German Research Center for Environmental Health, Member of the German Center for Lung Research, Neuherberg.
6 Institute for Medical Information Sciences, Biometry, and Epidemiology, Ludwig-Maximilians-Universitaet Muenchen, Munich.
7 Diabetes Research Group, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.