1. Estrogen Replacement Therapy: Indications and Complications
2. 17β-Estradiol For Postmenopausal Estrogen Replacement Therapy
3. Pharmacology of Estrogens;Chaudhury,1981
4. Biochemistry of Steroid Hormones, 2nd edn.;Makin,1984
5. Steroids;Fieser,1959