References
- Wren B G. Pulsatile release of sex steroids? A hypothesis to explain anomalies in hormonal therapy. Climacteric 2000; 3: 68
- Groshong S D, Owen G I, Grimison B, et al. Biphasic regulation of breast cancer cell growth by progesterone: role of cyclin dependent kinase inhibitors, p21 and p27. Mol Endocrinol 1997; 11: 1593–607