@inbook{NBERc5083,
 Crossref = "NBERdiew08-1",
 title = "Can A Disease-Based Price Index Improve the Estimation of the Medical Consumer Price Index?",
 author = "Xue Song and William D. Marder and Robert Houchens and Jonathan E. Conklin and Ralph Bradley",
 BookTitle = "Price Index Concepts and Measurement",
 Publisher = "University of Chicago Press",
 pages = "329-368",
 year = "2009",
 month = "December",
 URL = "http://www.nber.org/chapters/c5083",
}
@book{NBERdiew08-1,
 title = "Price Index Concepts and Measurement",
 author = "W. Erwin Diewert and John S. Greenlees and Charles R. Hulten",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2009",
 URL = "http://www.nber.org/books/diew08-1",
}