WASHINGTON, Sept. 22 -- The U.S. Department of Health and Human Services National Institutes of Health announced that it expects to award a grant for the improvement of the choice, use and equitable implementation of biomedical HIV prevention for women. The agency description of the grant states: "This initiative will solicit research to target gaps in knowledge about barriers and facilitators to ring use, interventions to improve uptake, adherence, and persistence on the vaginal ring, and impl more ST