The history of adolescent medicine: three periods of awareness and development during the twentieth century.
Schmidt
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D000293:Adolescent; D016497:Adolescent Health Services / Q000266:history; D000295:Adolescent Medicine / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D012955:Societies, Medical / Q000266:history; D014481:United States