title: Comment on "The economics of follow-on drug research and development: trends in entry rates and the timing of development".
authors.affiliation: Department of Economics, University of Calgary and Institute of Health Economics, Calgary, Canada. ahollis@ucalgary.ca
authors.forename: Aidan
authors.initials: A
authors.lastname: Hollis
mesh_terms: D015195:Drug Design; D004345:Drug Industry / Q000191:economics* / Q000639:trends; D017850:Economics, Pharmaceutical; D006801:Humans; D012106:Research; D013678:Technology, Pharmaceutical / Q000379:methods / Q000639:trends