Freedberg Daniel E, Salmasian Hojjat, Abrams Julian A, Green Robert A
Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, New York.
Department of Biomedical Informatics, Columbia University Medical Center, New York, New York.
JAMA Intern Med. 2015 Mar;175(3):452-4. doi: 10.1001/jamainternmed.2014.6680.