1. Low mortality rates in industrial cohort studies due to selection for work and survival in the industry;Fox A.J.;British Journal of Social Medicine,1976
2. Observations on the Healthy Worker Effect
3. Mortality among workers exposed to formaldehyde;Blair A.;Journal of the National Cancer Institute,1986
4. Healthy worker effect in morbidity studies;Eisen E.A.;Medicina del Lavoro,1995
5. SOME CONFOUNDING FACTORS IN THE STUDY OF MORTALITY AND OCCUPATIONAL EXPOSURES