Donowitz Mark, Alpers David H, Binder Henry J, Brewer Thomas, Carrington Jill, Grey Michael J
Department of Medicine and Physiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Gastroenterology. 2012 Mar;142(3):e1-9. doi: 10.1053/j.gastro.2012.01.014. Epub 2012 Jan 20.