1. Institute for Community Medicine, Department Epidemiology of Health Care & Community Health, Ernst–Moritz–Arndt University of Greifswald, Germany
2. Institute for Community Medicine, Department Epidemiology of Health Care & Community Health, Ernst–Moritz–Arndt University of Greifswald, Ellernholzstr. 1–2, D-17487 Greifswald, Germany.
3. Institute for Community Medicine, Department Study of Health in Pomerania (SHIP)/Clinical-Epidemiological Research, Ernst–Moritz–Arndt University of Greifswald, Germany
4. Institute of Pharmacology, Ernst–Moritz–Arndt University of Greifswald, Germany