1. Does the malignancy of breast cancer vary with age?;Stoll;J Clin Oncol,1976
2. Age as a prognostic factor in recurrent breast cancer;Falkson;J Clin Oncol,1986
3. Metastatic breast cancer—age has a significant effect on survival;Alberts;SAMJ,1991
4. The prognosis of breast carcinoma in women aged less than 40 years;Ribeiro;Clin Radiol,1981
5. Breast cancer in women aged 30 and under;Noyes;Cancer,1982