1. Contraception and benign breast disease - epidemiological studies;VESSEY,1983
2. Fibrocystic disease in oral contraceptive users. A histopathological evaluation of epithelial atypia;LI VOLSI;New England Journal of Medicine,1978
3. Oral contraceptives and breast cancer risk;PAFFENBARGER;Les Editions de l'INSERM,1979
4. Oral contraceptives and breast cancer;BRINTON;International Journal of Epidemiology,1982
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