Leeching in the twentieth century.
Giacometti
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National Institutes of Health, Bethesda, Maryland 20892.
D000818:Animals; D001815:Bloodletting / Q000266:history*; D005060:Europe; D049670:History, 17th Century; D049671:History, 18th Century; D049673:History, 20th Century; D049690:History, Ancient; D007865:Leeches; D014481:United States