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A new species of Hirudo (Annelida: Hirudinidae): historical biogeography of Eurasian medicinal leeches, BMC Zoology
Historical Article: Hirudo medicinalis: ancient origins of, and trends in the use of medicinal leeches throughout history - ScienceDirect
Leeching, Medical Procedure, History, Uses, & Benefits
Representative adult specimen of the European land leech (Xerobdella
Hirudinea Lamarck 1818: Evolutionary origin and taxonomy of the six medicinal leeches (genus Hirudo) known today
Serge Utevsky - Academia.edu
A new species of Hirudo (Annelida: Hirudinidae): historical biogeography of Eurasian medicinal leeches, BMC Zoology
PDF) Medicinal leeches: Historical use, ecology, genetics and conservation
Why was this man's luggage stuffed with 5,000 leeches?
Switching senses: Biologists find that leeches shift the way they locate prey in adulthood