1. OECD health statistics 2019 [internet],2019
2. Medicine use and spending in the U.S.: a review of 2018 and outlook to 2023. Parsippany, NJ;Aitken,2019
3. World preview 2018, outlook to 2024;EvaluateMedTech,2018
4. World Health Report 2010—health systems financing: the path to universal coverage;WHO,2010
5. 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;Lancet,2019