1. Department Health Sciences and Health Policy; University of Lucerne; Switzerland
2. Institute of Social and Preventive Medicine; University of Bern; Switzerland
3. Cancer Registry Zurich and Zug, Institute of Surgical Pathology, University Hospital Zurich and Epidemiology, Biostatistics and Prevention Institute; University Zurich; Switzerland
4. Departement Gesundheit und Soziales, Abteilung Gesundheit; Aarau Switzerland