AU  - Cram P, Lu X, Kates SL, Singh JA, Li Y, Wolf BR
TI  - TOtal knee arthroplasty volume, utilization, and outcomes among medicare beneficiaries, 1991-2010
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {1227-1236},
VI  - 308
IP  - 12
AID  - 10.1001/2012.jama.11153 [doi]
4100  - http://dx.doi.org/10.1001/2012.jama.11153
SO  - JAMA September 26, 2012 308(12):1227