Keep up to date with the latest news and content from BMC Gastroenterology and BioMed Central.
Jing Zhang, Shi-Bin Guo and Zhi-Jun Duan*
Corresponding author: Zhi-Jun Duan firstname.lastname@example.org
BMC Gastroenterology 2011, 11:135
Fields marked * are required
BioMed Central Ltd unless otherwise stated. Part of Springer Science+Business Media.