[1] Patient Ctr Outcomes Res Inst, Washington, DC USA
[2] Int Soc Pharmacoecon & Outcomes Res, Lawrenceville, NJ USA
[3] Univ Utah, Salt Lake City, UT USA
[4] European Med Agcy, London, England
[5] Zorginst Nederland, Utrecht, Netherlands
[6] Univ Utrecht, Utrecht, Netherlands
[7] Columbia Univ, New York, NY USA
[8] Harvard Med Sch, Brigham & Womens Hosp, Boston, MA USA
[9] Bocconi Univ, Milan, Italy
[10] Premera Blue Cross, Mountlake Terrace, WA USA
[11] Univ Maryland, Baltimore, MD 21201 USA