AU - Emanuel EJ TI - WHy accountable care organizations are not 1990s managed care redux PT - JOUR DP - 2012 TA - JAMA pages = {2263-2264}, VI - 307 IP - 21 AID - 10.1001/jama.2012.4313 [doi] 4100 - http://dx.doi.org/10.1001/jama.2012.4313 SO - JAMA June 6, 2012 307(21):2263