PATIENT CHARACTERISTICS: Age: Under 70 Sex: Female Menopausal status: Not specified Performance status: Not specified Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: Not pregnant or nursing No other systemic disease that may preclude study No other prior malignancy except adequately treated basal cell carcinoma of the skin or carcinoma in situ of the cervix