title: The medicinal leech: historical perspectives.
authors.affiliation: Northwestern University Medical School, Chicago, Illinois.
authors.forename: S L
authors.initials: SL
authors.lastname: Adams
mesh_terms: D000818:Animals; D001815:Bloodletting / Q000266:history* / Q000295:instrumentation; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D007865:Leeches