title: WHI estrogen-only arm is canceled.
authors.affiliation: Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR 97201-3098, USA. lsperoff@msn.com
authors.forename: Leon
authors.initials: L
authors.lastname: Speroff
mesh_terms: D015914:Estrogen Replacement Therapy / Q000009:adverse effects*; D005260:Female; D040361:Healthy People Programs; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D014481:United States; D016387:Women's Health