[Anti-smallpox vaccination in children under 6 months of age].
D000367:Age Factors; D006801:Humans; D007223:Infant; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D014611:Vaccination
D012900:Smallpox Vaccine
Vacinação antivariólica em crianças menores de seis meses.