AU  - Barnett ML, Song Z, Landon BE
TI  - TRends in physician referrals in the united states, 1999-2009
PT  - JOUR
DP  - 2012
TA  - Archives of Internal Medicine
pages = {163-170},
VI  - 172
IP  - 2
AID  - 10.1001/archinternmed.2011.722 [doi]
4100  - http://dx.doi.org/10.1001/archinternmed.2011.722
SO  - Archives of Internal Medicine January 23, 2012 172(2):163