title: [The unpublished essay on vaccines by Ignacio María Ruiz de Luzuriaga (1763-1822)].
authors.forename: José
authors.initials: J
authors.lastname: Tuells
mesh_terms: D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D012899:Smallpox / Q000266:history* / Q000517:prevention & control; D013030:Spain; D014612:Vaccines / Q000266:history*
chemical_list: D014612:Vaccines