1. World Health Organization. Primary Health Care: Alma-Alta 1978. Geneva, Switzerland: WHO, 1978. Health for All; No. 1.
2. Coulter A. Why should health care services be primary care-led? J Health Serv Res Policy. 1996;1:122–4.
3. Starfield B. The future of primary care in a managed care era. Int J Health Serv. 1997;27:687–96.
4. Starfield B, Cassady C, Nanda J, Forrest CB, Berk R. Consumer experiences and provider perceptions of the quality of primary care: implications for managed care. J Fam Pract. 1998;46:216–26.
5. Schucht C, Kochen MM. Managed care: a model for outpatient care in Germany? [in German]. Z Ärztl Fortbild Qualitätssich. 1998;92:685–9.