@inbook{NBERc7428,
 Crossref = "NBERstec97-1",
 title = "Long-Term Trends in Health, Welfare, and Economic Growth in the United States",
 author = "Dora Costa and Richard H. Steckel",
 BookTitle = "Health and Welfare during Industrialization",
 Publisher = "University of Chicago Press",
 pages = "47-90",
 year = "1997",
 month = "January",
 URL = "http://www.nber.org/chapters/c7428",
}
@book{NBERstec97-1,
 title = "Health and Welfare during Industrialization",
 author = "Richard H. Steckel and Roderick Floud",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1997",
 URL = "http://www.nber.org/books/stec97-1",
}