How should we listen to ECHO? Although ECHO results are largely reassuring for contraceptive methods included in the trial, a substantial unfinished agenda remains to meet the range of needs of those at risk for unplanned pregnancy and HIV infection, including...
HIV incidence among women using intramuscular depot medroxyprogesterone acetate, a copper intrauterine device, or a levonorgestrel implant for contraception: a randomised, multicentre, open-label trial Observational and laboratory studies suggest that some hormonal...
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