title: Penicillin In the Purification Of the Smallpox Vaccine.
authors.forename: C
authors.initials: C
authors.lastname: DIAZ ROMERO
mesh_terms: D006801:Humans; D010406:Penicillins; D012899:Smallpox; D012900:Smallpox Vaccine; D014612:Vaccines / Q000302:isolation & purification*
chemical_list: D010406:Penicillins; D012900:Smallpox Vaccine; D014612:Vaccines
keywords: PENICILLIN/vaccine purification; SMALLPOX/vaccine; VACCINES/purification
vernacular_title: La penicilina en la purificación de la vacuna antivarólica.