Measuring quality of health-care services: What is known and where are the gaps?

Kruk, M. E., Kelley, E., Syed, S. B., Tarp, F., Addison, T., & Akachi, Y. (2017). Measuring quality of health-care services: What is known and where are the gaps? Bulletin of the World Health Organization. World Health Organization. https://doi.org/10.2471/BLT.17.195099