title: Porcupine stones.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Duffin
mesh_terms: D000931:Antidotes / Q000266:history* / Q000627:therapeutic use; D001630:Bezoars / Q000266:history* / Q000628:therapy; D005060:Europe; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D006801:Humans
chemical_list: D000931:Antidotes