Dickman Ram, Fass Ronnie
Neuro-Enteric Clinical Research Group, Department of Medicine, Section of Gastroenterology, Southern Arizona VA Health Care System and University of Arizona Health Sciences Center, Tucson, Arizona 85723, USA.
Clin Gastroenterol Hepatol. 2006 May;4(5):558-63. doi: 10.1016/j.cgh.2005.12.026.