. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: J Gastroenterol Hepatol. 2009 Nov;24(11):1725–1732. doi: 10.1111/j.1440-1746.2009.06047.x
© 2009 Journal of Gastroenterology and Hepatology Foundation and Blackwell Publishing Asia Pty Ltd