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How Parasites Are Used in Modern Medicine - Big Think
Meet the Bloodsuckers - The New York Times
Modern medicine still needs leeches
ROM curator 'very happy' to help identify new species of medicinal leech
Leeches expose wildlife's whereabouts and may aid conservation efforts
Newdesk Search, Page 74
What are the differences between leeches, snails and slugs? - Quora
Newdesk Search, Page 74
Natural History Museum, Page 5
A bloody 19th-century health craze almost drove these creatures extinct
Natural History Museum, Page 5
Meet the Bloodsuckers - The New York Times
New Bloodsucker Is Discovered: First North American Medicinal Leech Scientifically Described in Over 40 Years
New Bloodsucker Is Discovered: First North American Medicinal Leech Scientifically Described in Over 40 Years