009160000a22002650004500 PH-MaWHO 20241108112328.0 Hutchins, Sonja S. 656444 Jansen, Henrica A.F.M. 656445 Robertson, Susan E. 651781 Missed opportunities for immunization : review of studies from developing and industrialized countries. WHO/EPI/GEN/92.8.--Unpublished] Geneva : World Health Organization, 1993. 40p. WHO Documents File eng Vaccination 354673 Immunization-programs 406278 Case-control studies 379773 Developing countries 130222 Developed countries 432992 WHO Expanded Programme on Immunization. 652423 http://whqlibdoc.who.int/hq/1992/WHO_EPI_GEN_92.8.pdf DOC 7760 7760 0 0 0 0 WPRO WPRO 2021-05-23 0 WHO Documents File 07760 2024-01-24 00:00:00 2021-05-23 DOC