[Infant mortality in Spain in 1953 and 1954; preliminary note].
D001699:Biometry; D006801:Humans; D007223:Infant / Q000706:statistics & numerical data; D007226:Infant Mortality; D013030:Spain; D014798:Vital Statistics
INFANT/statistics; VITAL STATISTICS
La mortalidad infantil Española en los años 1953 y 1954; nota previa.