%0 Journal Article %J Medical Care %D 2012 %T Physician Networks are Associated with Cost and Intensity of Care in US Hospitals %A Barnett, ML %A Christakis, NA %A O'Malley, AJ %A Onnela, J-P %A Keating, NL %A Landon, BE %B Medical Care %V 50 %P 152-160 %G eng %U http://journals.lww.com/lww-medicalcare/Abstract/2012/02000/Physician_Patient_sharing_Networks_and_the_Cost.7.aspx %N 2 %9 Journal article