The need for medical information on an international scale.
D000349:Africa; D001208:Asia; D003095:Collagen Diseases / Q000453:epidemiology; D003142:Communication; D003906:Developing Countries; D004501:Education, Medical; D006801:Humans; D009748:Nutrition Disorders / Q000453:epidemiology; D010506:Periodicals as Topic; D014481:United States