RT Journal Article SR Electronic T1 The future of routine immunization in the developing world: challenges and opportunities 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 381 OP 394 DO 10.9745/GHSP-D-14-00137 VO 2 IS 4 A1 Angela K Shen A1 Rebecca Fields A1 Mike McQuestion YR 2014 UL http://www.ghspjournal.org/content/2/4/381.abstract