RT Journal Article SR Electronic T1 The Levonorgestrel Intrauterine System: A Pragmatic View of an Excellent Contraceptive JF Global Health: Science and Practice JO GLOB HEALTH SCI PRACT FD Johns Hopkins University- Global Health. Bloomberg School of Public Health, Center for Communication Programs SP 538 OP 543 DO 10.9745/GHSP-D-15-00330 VO 3 IS 4 A1 Roy Jacobstein A1 James D Shelton YR 2015 UL http://www.ghspjournal.org/content/3/4/538.abstract AB