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Smoking reduces fecundity: a European multicenter study on infertility and subfecundity. The European Study Group on Infertility and Subfecundity

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General Info
Geography 
Denmark (DNK)
France (FRA)
Germany (DEU)
Italy (ITA)
Poland (POL)
Spain (ESP)
Sweden (SWE)
Coverage type 
Country
Time period covered 
01/1991 - 12/1993