| Literature DB >> 2840219 |
Abstract
Entities:
Keywords: Clinical Research; Delivery Of Health Care; Diseases; Economic Factors; Health; Health Services; Immunization; Incidence; International Agencies; Measurement; Medicine; Organizations; Preventive Medicine; Primary Health Care; Reliability; Research And Development; Research Methodology; Technology; Un; Vaccination; Viral Diseases--prevention and control; Who
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Substances:
Year: 1988 PMID: 2840219 PMCID: PMC2491049
Source DB: PubMed Journal: Bull World Health Organ ISSN: 0042-9686 Impact factor: 9.408