Kansanterveyslaitos KTL

Viitteet 1-2 / 2

Improving the efficiency of nested case-control studies of interaction by selecting controls using counter matching on exposure

Cologne JB; Sharp GB; Neriishi K; Verkasalo PK; Land CE; Nakachi K
Int J Epidemiol (2004)
Radon and other natural radionuclides in drinking water and risk of stomach cancer: A case-cohort study in Finland

Auvinen A; Salonen L; Pekkanen J; Pukkala E; Ilus T; Kurttio P
Int J Cancer (2005)