title: Vaginal ring hormone delivery systems in contraception and menopause.
authors.affiliation: Department of Obstetrics and Gynecology, Eastern Virginia Medical School, 601 Colley Avenue, Norfolk, VA 23507, USA. ballagsa@evms.edu
authors.forename: S A
authors.initials: SA
authors.lastname: Ballagh
mesh_terms: D003267:Contraception / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods*; D003270:Contraceptive Agents / Q000008:administration & dosage* / Q000009:adverse effects; D003274:Contraceptive Devices, Female / Q000009:adverse effects; D004867:Equipment Design; D015914:Estrogen Replacement Therapy / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D008593:Menopause / Q000187:drug effects*
chemical_list: D003270:Contraceptive Agents