Hormonal environment in the induction of breast cancer in castrated rats using dimethylbenzanthracene: Influence of the presence or absence of ovarian activity and of treatment with estradiol, tibolone, and raloxifene

1. Callejo, J.
2. Cano, A.
3. Medina, M.
4. Villaronga, M.
5. Gonzalez-Bosquet, E.
6. Sabria, J.
7. Lailla, J.-M.