1. Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, WI 53211, USA
2. Molecular Therapeutics Laboratory, Program in Women's Oncology, Department of Obstetrics and Gynecology, Woman and Infant's Hospital of Rhode Island, Alpert Medical School, Brown University, Provence, RI 02903, USA
3. Endocrine Research Unit, Department of Medicine, Veterans Affairs Medical Center, San Francisco, CA 94121, USA