1. Tax-based financing for health systems: options and experiences. Discussion paper number 4. 2004. Available at
http://www.who.int/health_financing/taxed_based_financing_dp_04_4.pdf
.
2. Reynolds E. Look at healthcare models around the world. Focus Economics; March 2018. Available at
https://www.focus-economics.com/blog/a-look-at-healthcare-models-around-the-world
.
3. Institute of Medicine (US) and National Academy of Engineering (US) Roundtable on Value & Science-Driven Health Care. Healthcare system complexities, impediments, and failures. In: Engineering a learning healthcare system: a look at the future: workshop summary. Washington, DC: National Academies Press; 2011. p. 117–70. Available from:
https://www.ncbi.nlm.nih.gov/books/NBK61963/
.
4. Massuda A, et al. The Brazilian health system at crossroads: progress, crisis and resilience. BMJ Glob Health. 2018;3(4):e000829.
5. Sawicki P, Bastian H. German healthcare: a bit of Bismarck plus more science. BMJ. 2008;337:a1997.