7Cfimmins EM, Saito Y, Trends in healthy life expectancy in the United States, 1970 - 1990: gender, racial, and educational differences [ J ]. Social science & medicine , 2001 (11).
8Baicker K, Chandra A, Skinner JS, Geographic variation in health care and the problem of measuring racial disparities [ J ]. Perspectives in Biology and medicine2005 (1).
9Robert B. Denhardt Janet Vinzant Denhardt, The New Public Service: Serving Rather than Steering, Public Administration Review. 2000.
10Entwisfle Tom; Martin Steve: "From Competition to Collaboration in Public Service Delivery: A New Agenda for Research", Public Administration, Volume 83, Number 1, March 2005.