[Medical statistics for the years of 1956 & 1957; communications for the Public Health Service].
D003142:Communication; D006801:Humans; D014481:United States; D014492:United States Public Health Service; D014798:Vital Statistics
VITAL STATISTICS
Medicinalstatistiske oplysninger for årene 1956 og 1957; meddelelse fra Sundhedsstyrelsen.