1Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas, USA
2Department of Clinical Sciences, University of Texas Southwestern, Dallas, Texas, USA
3Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
4Veterans Affairs Center for Clinical Management Research, Ann Arbor, Michigan, USA
*Correspondence: Amit G. Singal, MD, MS, Dedman Scholar of Clinical Care, Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, 5959 Harry Hines Blvd, POB 1, Suite 420, Dallas, Texas 75390-8887, USA. E-mail: [email protected]
Received 19 June 2013; accepted 19 August 2013
published online 2 January 2014
