Published on in Vol 15, No 1 (2013): January
1 Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
2 Center for Health Policy and Inequalities Research, Duke University, Durham, NC, United States
Published on in Vol 15, No 1 (2013): January
1 Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
2 Center for Health Policy and Inequalities Research, Duke University, Durham, NC, United States