1 Department of Medicine, Duke University School of Medicine, Durham, NC. Electronic address: kylie.calderon@duke.edu.
2 Department of Medicine, Duke University School of Medicine, Durham, NC.
3 Department of Medicine, Duke University School of Medicine, Durham, NC; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC.
4 Department of Medicine, Duke University School of Medicine, Durham, NC; Durham VA Medical Center, Durham, NC.