@inbook{NBERc12343,
 Crossref = "NBERcutl09-1",
 title = "Characterizing Markets for Biopharmaceutical Innovations: Do Biologics Differ from Small Molecules?",
 author = "Mark R. Trusheim and Murray L. Aitken and Ernst R. Berndt",
 BookTitle = "Frontiers in Health Policy Research, volume 13",
 Publisher = "The Berkeley Electronic Press",
 year = "2010",
 month = "January",
 URL = "http://www.nber.org/chapters/c12343",
}
@book{NBERcutl09-1,
 title = "Frontiers in Health Policy Research, volume 13",
 author = "David Cutler and Alan Garber and Dana Goldman and William Vogt",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "The Berkeley Electronic Press",
 year = "2010",
 URL = "http://www.nber.org/books/cutl09-1",
}