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Publikováno v:
British medical journal. 2(6151)
A 1968 study of the incidence of thyroid diseases associated with oral contraceptives (OCs) was conducted using a sample of 23000 women on OCs and a similar number of controls who had never taken OCs. The women were categorized according to contracep
Publikováno v:
British medical journal. 2(5513)
Publikováno v:
British medical journal. 1(5129)