Wehby George L, McCarthy Ann Marie, Castilla Eduardo E, Murray Jeffrey C
Dept. of Health Management and Policy, College of Public Health, University of Iowa, 200 Hawkins Drive, E204 GH, Iowa City, IA 52242, , Fax : 319-384-5125.
Forum Health Econ Policy. 2012 Oct 4;14(2). doi: 10.2202/1558-9544.1237.