F. R. Lichtenberg, ‘The effect of pharmaceutical innovation on longevity: Evidence from the U.S. and 26 high-income countries’, Economics & Human Biology, vol. 46, p. 101124, Aug. 2022, doi: 10.1016/j.ehb.2022.101124.
OECD/European Commission (2024), Health at a Glance: Europe 2024: State of Health in the EU Cycle, OECD Publishing, Paris, doi.org/10.1787/b3704e14-en, Figure 5.3. Health expenditure as a share of GDP, 2022 (or nearest year)