@inbook{NBERc6552,
 Crossref = "NBERfuch82-1",
 title = "The Choice of Health Policies with Heterogeneous Populations",
 author = "Donald S. Shepard and Richard J. Zeckhauser",
 BookTitle = "Economic Aspects of Health",
 Publisher = "University of Chicago Press",
 pages = "253-298",
 year = "1982",
 URL = "http://www.nber.org/chapters/c6552",
}
@book{NBERfuch82-1,
 title = "Economic Aspects of Health",
 author = "Victor R. Fuchs",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1982",
 URL = "http://www.nber.org/books/fuch82-1",
}