Institution: | 1. Institute of Social Medicine and Epidemiology, Medical University Graz, Universitaetsplatz 6/I, 8010, Graz, Austria 2. Fonds Gesundes ?sterreich, Vienna, Austria 3. Salzburger Gebietskrankenkasse SGKK, Salzburg, Austria 4. Center of Public Health, Institute of Social Medicine, Medical University Vienna, Vienna, Austria
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