@inbook{NBERc5084,
 Crossref = "NBERdiew08-1",
 title = "Comment on "Can A Disease-Based Price Index Improve the Estimation of the Medical CPI?"",
 author = "Ernst R. Berndt",
 BookTitle = "Price Index Concepts and Measurement",
 Publisher = "University of Chicago Press",
 pages = "369-372",
 year = "2009",
 month = "December",
 URL = "http://www.nber.org/chapters/c5084",
}
@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",
}