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Scandinavian Journal of Social Medicine|January 1, 1982
Confounding as a result of differential diagnosisJ OlsenScandinavian Journal of Work, Environment & Health|May 11, 1999
Design options and sources of bias in time-to-pregnancy studiesJ OlsenScandinavian Journal of Social Medicine|September 1, 1995
Moderate alcohol consumption in pregnancy and subsequent left-handednessJ OlsenInternational Journal of Epidemiology|April 1, 1992
Cigarette smoking in pregnancy and fetal growth. Does the type of tobacco play a role?J OlsenJournal of Epidemiology and Community Health|April 1, 1994
Options in making use of pregnancy history in planning and analysing studies of reproductive failureJ OlsenScandinavian Journal of Psychology|September 1, 1992
Evaluating young children's cognitive capacities through computer versus hand drawingsJ OlsenDanish Medical Bulletin|June 1, 1990
Subfecundity according to the age of the mother and the fatherJ OlsenAlcoholism, Clinical and Experimental Research|October 1, 1994
Effects of moderate alcohol consumption during pregnancy on child development at 18 and 42 monthsJ OlsenAmerican Journal of Epidemiology|April 1, 1991
Cigarette smoking, tea and coffee drinking, and subfecundityJ OlsenJournal of Epidemiology and Community Health|January 24, 2003
What characterises a useful concept of causation in epidemiology?J OlsenPageof 228