Health Policy Plan 2015 Oct 13;30(8):1059-66. Epub 2014 Dec 13.
Sir Walter Murdoch School of Public Policy and International Affairs, Murdoch University, Perth, WA, Australia & School of Economics, University of Bologna, Bologna, Italy, Economics Department, University of Southampton, Southampton, UK, Independent Consultant and Centre for Applied Health Research, Liverpool School of Tropical Medicine, L3 5PQ Liverpool and Department of International Health, Johns Hopkins School of Public Health, Baltimore, MD, USA.