TY  - JOUR
T1  - REsearch letters
Y1  - 2011/11/08
N1  - 10.1001/archinternmed.2010.392
JO  - Archives of Internal Medicine
SP  - 1856
EP  - 1861
VL  - 170
IS  - 20
N2  - 
SN  - 0003-9926
M3  - doi: 10.1001/archinternmed.2010.392
UR  - http://dx.doi.org/10.1001/archinternmed.2010.392
ER  -