Robert A. Wilson was an American gynecologist who is known for writing the best-selling 1966 book Feminine Forever. He is also known for his organization the Wilson Research Foundation (WRA). In Feminine Forever, Wilson promoted the use of estrogen therapy to avoid the menopause and associated symptoms. He characterized menopause as a serious disease state and made strong claims about the effectiveness and safety of menopausal hormone therapy in alleviating it and improving quality of life and health. Wilson's claims were criticized as not being based on adequate research and evidence. Subsequently, trials such as the Women's Health Initiative (WHI) contradicted Wilson's claims and showed that menopausal hormone therapy could have significant medical risks and that its benefits were not as great as once believed.