Research associate University Georgia, Athens, 1969-1972, Emory University, Atlanta, 1972-1974. Member faculty Medical College Georgia, Augusta, since 1974, professor endocrinology, since 1982. Regular member endocrine study section National Institutes of Health, since 1985.
Speaker in field.
Member editorial board Biology of Reproduction, 1978-1983. Member American Society Biological Chemists (endocring study section), Endrocine Society, Society for Study Reproduction, New York Academy of Sciences, American Fertility Society, American Chemical Society Research on polypeptide hormone action at testicular level, polypeptide hormone receptors, cAMP, mediation and testosterone production.