@inbook{NBERc7430,
 Crossref = "NBERstec97-1",
 title = "Was Industrialization Hazardous to Your Health? Not in Sweden!",
 author = "Lars Sandberg and Richard H. Steckel",
 BookTitle = "Health and Welfare during Industrialization",
 Publisher = "University of Chicago Press",
 pages = "127-160",
 year = "1997",
 month = "January",
 URL = "http://www.nber.org/chapters/c7430",
}
@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",
}