AU - Chang C, Stukel TA, Flood A, Goodman DC TI - PRimary care physician workforce and medicare beneficiaries' health outcomes PT - JOUR DP - 2011 TA - JAMA pages = {2096-2104}, VI - 305 IP - 20 AID - 10.1001/jama.2011.665 [doi] 4100 - http://dx.doi.org/10.1001/jama.2011.665 SO - JAMA May 25, 2011 305(20):2096