Die Welt: "Kellner haben das gröÃte Krebsrisiko"
Stern: "Studie: Kellner haben höchstes Krebsrisiko"
Nordic Occupational Cancer Study (NOCCA)
Finnish Cancer Registry: "Work and cancer in the Nordic countries (NOCCA)"
informaworld: "Occupation and cancer in the Nordic countries"
informaworld: "Occupation and cancer - follow-up of 15 million people in five Nordic countries"
Ruhr-UniversitÀt Bochum: "Forschung zum Thema: 'Krebsrisiko am Arbeitsplatz'"