AU - Voelker R TI - DEcades of work to reduce disparities in health care produce limited success PT - JOUR DP - 2008 TA - JAMA pages = {1411-1413}, VI - 299 IP - 12 AID - 10.1001/jama.299.12.1411 [doi] 4100 - http://dx.doi.org/10.1001/jama.299.12.1411 SO - JAMA March 26, 2008 299(12):1411