Joannie Shen1
, Ronald Andersen2
, Paul S Albert3
, Neil Wenger4,5
, John Glaspy6
, Melissa Cole1
and Paul Shekelle5,7 
1
Laboratory of Clinical Sciences, National Institute of Alcoholism and Alcohol Abuse, National Institutes of Health, Bethesda, MD, USA
2
Department of Health Services, UCLA School of Public Health, Los Angeles, CA, USA
3
Biometric Research Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
4
Department of Medicine, Division of General Internal Medicine & Health Services Research, UCLA School of Medicine, Los Angeles, CA, USA
5
RAND, Santa Monica, CA, USA
6
Department of Medicine, Division of Hematology & Oncology, UCLA School of Medicine, Los Angeles, CA, USA
7
Greater Los Angeles VA Healthcare System, Los Angeles, CA, USA