Sheikh, A 2019, ' Past, present, and future of global health financing: a review of development assistance, government, out-of-pocket, and other private spending on health for 195 countries, 1995-2050 ', The Lancet, vol. 393, no. 10187, pp. 2233-2260 . https://doi.org/10.1016/S0140-6736(19)30841-4 The lancet : international edition Lancet (London, England) LANCET r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA instname Repisalud Instituto de Salud Carlos III (ISCIII)