1. Abuzeid, M. and Sasy, M. (1996). Elevated progesterone levels in the late follicular phase do not predict success of in vitro fertilization-embryo transfer. Fertil. Steril 65: 981–985.
2. Agarwal, A., Monder, C., Eckstein, B., and White, P. (1989). Cloning and expression of rat cDNA encoding corticosteroid 11 ß-dehydrogenase. J. Bio. Chem. 264:18939–18943.
3. Agrawal, R., Tan, S., Wild, S., et al. (1999). Serum vascular endothelial growth factor concentrations in in vitro fertilization cycles predict the risk of ovarian hyperstimulation syndrome. Fertil. Steril. 71: 287–293.
4. Albiston A., Obeyesekere, V., Smith, R. and Krozowski, Z. (1994). Cloning and tissue distribution of the human 11 ß-hydroxysteroid dehydrogenase type 2 enzyme. Mol.Cel Endocr. 105: R11–R17.
5. Andersen, C. (1990). Levels of steroid binding proteins and steroids in human preovulatory follicle fluid and serum as predictors of success in in vitro fertilization-embryo transfer treatment. J. Clin. Endocr. and Metabol. 39: 835–838.