title: The computerized information system of the Expanded Programme on Immunization.
authors.affiliation: Expanded Programme on Immunization, WHO, Switzerland.
authors.forename: D J
authors.initials: DJ
authors.lastname: Hu
authors.forename: C
authors.initials: C
authors.lastname: Torel
authors.forename: R
authors.initials: R
authors.lastname: Kim-Farley
mesh_terms: D003625:Data Collection / Q000379:methods; D003627:Data Interpretation, Statistical; D004059:Diffusion of Innovation; D006801:Humans; D007114:Immunization / Q000706:statistics & numerical data; D007256:Information Systems / Q000458:organization & administration*; D011159:Population Surveillance / Q000379:methods*; D014944:World Health Organization