Martin McKee, professor of European public health at the London School of Hygiene and Tropical Medicine, and Simon Capewell, professor of clinical epidemiology at the University of Liverpool, said: "A fundamental principle of public health is that policies should be based on evidence of effectiveness."
London School of Hygiene and Tropical Medicine -koulun Euroopan kansanterveyden professori Martin McKee sekä University of Liverpoolin kliinisen epidemiologian professori Simon Capewell sanovat: ”Kansanterveyden pääperiaate on, että toimintatavat pitää perustaa todistetulle tehokkuudelle.”