1. Amelung, V. E. (2007), Integrierte Versorgung – von Pilotprojekten zur „wirklichen” Regelversorgung, in: Gesundheits- und Sozialpolitik 1/2 2007, S. 10–13
2. Bindman, A. B. et al. (1998), Selection and Exclusion of Primary Care Physicians by Managed Care Organizations, in: JAMA, 279, S. 675–679
3. Blum, J. D. (1997), Economic Credentialing Moves from the Hospital to Managed Care, in: Kongstvedt, P. R. (Hrsg.), Readings in Managed Health Care, Aspen, Gaithersburg, S. 108–115
4. Committee on Quality of Health Care in America (2001), Crossing the quality chasm: A new health system for the 21st century, Institute of Medicine, Washington, D. C.
5. Feldmann, R. et al. (1990), Effects of HMOs on the Creation of Competitive Markets for Hospital Services, in: Journal of Health Economics, 9, S. 207–222