Zarallo Barbosa, Tomás
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Revista Española de Salud Pública Vol 67 | Núm 5 | 1993 - ORIGINALS
Seroepidemiological Survey and Programme for Vaccination against Hepatitis B in School Children in Extremadura
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Revista Española de Salud Pública Vol 68 | Núm 5-6 | 1994 - SPECIALL COLLABORATIONS
Organization of the Programme of Universal Vaccination Against Hepatitis B in School Age Children and Coverage in the First Year of Vaccination. Extremadura
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