@article{b2f522f2651447e8a0f7b5c18a083f36,
title = "An estimation of the impact of smallpox eradication on the expectation of life in selected less developed countries.",
author = "P. Namfua and Kim, {Y. J.} and Mosley, {W. H.}",
year = "1978",
month = dec,
day = "1",
language = "English (US)",
volume = "31",
pages = "110--119",
journal = "World health statistics quarterly. Rapport trimestriel de statistiques sanitaires mondiales",
issn = "0379-8070",
publisher = "World Health Organization",
number = "2",
}