1. Smith P . Part 1: Principles of performance measurement. In: Performance measurement for health system improvement: experiences, challenges and prospects. Copenahgen: WHO Regional Office for Europe, 2008.
2. WHO Regional Office for Europe . The Tallinn charter: health systems for health and wealth. Copenhagen: WHO Regional Office for Europe, 2008.
3. Fekri O , Macarayan ER , Klazinga N . Health system performance assessment in the WHO European Region: which domains and indicators have been used by Member States for its measurement? In: Health evidence network synthesis report 55. Copenhagen: WHO Regional Office for Europe, 2018.
4. World Health Organization . The world health report 2000: health systems: improving performance. Geneva: World Health Organization, 2000.
5. Kelley J , Hurst J . Health care quality indicators project conceptual framework paper, in OECD health working papers No. 23. Paris: OECD, 2006.