New technology, old struggles plague vaccine developers.
Phillips
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D002648:Child; D003906:Developing Countries; D004345:Drug Industry / Q000191:economics; D006077:Government Agencies; D006292:Health Priorities; D006301:Health Services Needs and Demand; D006801:Humans; D017589:Immunization Programs; D012109:Research Support as Topic; D014481:United States