Opportunities and challenges in pediatric clinical research.
Beitins
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National Center for Research Resources, National Institutes of Health, Bethesda, Maryland 20892, USA.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009316:National Institutes of Health (U.S.); D010372:Pediatrics; D012106:Research / Q000639:trends; D012109:Research Support as Topic; D014481:United States