Riggs Kevin R, Segal Jodi B, Shin Eun Ji, Pollack Craig Evan
Division of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
JAMA. 2016 Feb 2;315(5):514-5. doi: 10.1001/jama.2015.15278.